Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/1077478?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/1077478?format=api", "purl": "pkg:deb/debian/pyjwt@2.12.1-1?distro=trixie", "type": "deb", "namespace": "debian", "name": "pyjwt", "version": "2.12.1-1", "qualifiers": { "distro": "trixie" }, "subpath": "", "is_vulnerable": false, "next_non_vulnerable_version": null, "latest_non_vulnerable_version": null, "affected_by_vulnerabilities": [], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5609?format=api", "vulnerability_id": "VCID-42yf-7k7m-dkf6", "summary": "In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-11424.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-11424.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-11424", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00193", "scoring_system": "epss", "scoring_elements": "0.40938", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00193", "scoring_system": "epss", "scoring_elements": "0.41021", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00525", "scoring_system": "epss", "scoring_elements": "0.67031", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00525", "scoring_system": "epss", "scoring_elements": "0.67011", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00847", "scoring_system": "epss", "scoring_elements": "0.74881", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00847", "scoring_system": "epss", "scoring_elements": "0.74873", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79597", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.7959", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79619", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79606", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79634", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79643", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79663", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.79648", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.01288", "scoring_system": "epss", "scoring_elements": "0.7964", "published_at": "2026-04-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-11424" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11424", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11424" }, { "reference_url": "https://github.com/advisories/GHSA-r9jw-mwhq-wp62", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-r9jw-mwhq-wp62" }, { "reference_url": "https://github.com/jpadilla/pyjwt", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jpadilla/pyjwt" }, { "reference_url": "https://github.com/jpadilla/pyjwt/pull/277", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jpadilla/pyjwt/pull/277" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyjwt/PYSEC-2017-24.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyjwt/PYSEC-2017-24.yaml" }, { "reference_url": "http://www.debian.org/security/2017/dsa-3979", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://www.debian.org/security/2017/dsa-3979" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1482529", "reference_id": "1482529", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1482529" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873244", "reference_id": "873244", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873244" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11424", "reference_id": "CVE-2017-11424", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11424" }, { "reference_url": "https://usn.ubuntu.com/3407-1/", "reference_id": "USN-3407-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/3407-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/936132?format=api", "purl": "pkg:deb/debian/pyjwt@1.4.2-1.1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@1.4.2-1.1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936133?format=api", "purl": "pkg:deb/debian/pyjwt@1.7.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@1.7.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936131?format=api", "purl": "pkg:deb/debian/pyjwt@2.6.0-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.6.0-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936135?format=api", "purl": "pkg:deb/debian/pyjwt@2.10.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.10.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936134?format=api", "purl": "pkg:deb/debian/pyjwt@2.11.0-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.11.0-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1077478?format=api", "purl": "pkg:deb/debian/pyjwt@2.12.1-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.12.1-1%3Fdistro=trixie" } ], "aliases": [ "CVE-2017-11424", "GHSA-r9jw-mwhq-wp62", "PYSEC-2017-24" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-42yf-7k7m-dkf6" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/14578?format=api", "vulnerability_id": "VCID-5zts-netw-syay", "summary": "PyJWT Issuer field partial matches allowed\n### Summary\nThe wrong string if check is run for `iss` checking, resulting in `\"acb\"` being accepted for `\"_abc_\"`.\n\n### Details\nThis is a bug introduced in version [2.10.0](https://github.com/jpadilla/pyjwt/commit/1570e708672aa9036bc772476beae8bfa48f4131#diff-6893ad4a1c5a36b8af3028db8c8bc3b62418149843fc382faf901eaab008e380R366): checking the \"iss\" claim\nchanged from `isinstance(issuer, list)` to `isinstance(issuer,\nSequence)`.\n\n```diff\n- if isinstance(issuer, list):\n+ if isinstance(issuer, Sequence):\n if payload[\"iss\"] not in issuer:\n raise InvalidIssuerError(\"Invalid issuer\")\n else:\n```\n\nSince str is a Sequnce, but not a list, `in` is also used for string\ncomparison. This results in `if \"abc\" not in \"__abcd__\":` being\nchecked instead of `if \"abc\" != \"__abc__\":`.\n### PoC\nCheck out the unit tests added here: https://github.com/jpadilla/pyjwt-ghsa-75c5-xw7c-p5pm\n```python\n issuer = \"urn:expected\"\n\n payload = {\"iss\": \"urn:\"}\n\n token = jwt.encode(payload, \"secret\")\n\n # decode() succeeds, even though `\"urn:\" != \"urn:expected\". No exception is raised.\n with pytest.raises(InvalidIssuerError):\n jwt.decode(token, \"secret\", issuer=issuer, algorithms=[\"HS256\"])\n```\n\n\n### Impact\n\nI would say the real world impact is not that high, seeing as the signature still has to match. We should still fix it.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-53861.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-53861.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-53861", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77298", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77283", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77278", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77244", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77253", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77167", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77211", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77215", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77236", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77208", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77199", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77156", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77185", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.01019", "scoring_system": "epss", "scoring_elements": "0.77251", "published_at": "2026-04-16T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-53861" }, { "reference_url": "https://github.com/jpadilla/pyjwt", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N" }, { "value": "2.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jpadilla/pyjwt" }, { "reference_url": "https://github.com/jpadilla/pyjwt/commit/1570e708672aa9036bc772476beae8bfa48f4131#diff-6893ad4a1c5a36b8af3028db8c8bc3b62418149843fc382faf901eaab008e380R366", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N" }, { "value": "2.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-12-02T11:10:51Z/" } ], "url": "https://github.com/jpadilla/pyjwt/commit/1570e708672aa9036bc772476beae8bfa48f4131#diff-6893ad4a1c5a36b8af3028db8c8bc3b62418149843fc382faf901eaab008e380R366" }, { "reference_url": "https://github.com/jpadilla/pyjwt/commit/33022c25525c1020869c71ce2a4109e44ae4ced1", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N" }, { "value": "2.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-12-02T11:10:51Z/" } ], "url": "https://github.com/jpadilla/pyjwt/commit/33022c25525c1020869c71ce2a4109e44ae4ced1" }, { "reference_url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-75c5-xw7c-p5pm", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N" }, { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "2.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-12-02T11:10:51Z/" } ], "url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-75c5-xw7c-p5pm" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53861", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N" }, { "value": "2.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53861" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2329527", "reference_id": "2329527", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2329527" }, { "reference_url": "https://github.com/advisories/GHSA-75c5-xw7c-p5pm", "reference_id": "GHSA-75c5-xw7c-p5pm", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-75c5-xw7c-p5pm" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/936137?format=api", "purl": "pkg:deb/debian/pyjwt@0?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@0%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936133?format=api", "purl": "pkg:deb/debian/pyjwt@1.7.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@1.7.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936131?format=api", "purl": "pkg:deb/debian/pyjwt@2.6.0-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.6.0-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936135?format=api", "purl": "pkg:deb/debian/pyjwt@2.10.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.10.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936134?format=api", "purl": "pkg:deb/debian/pyjwt@2.11.0-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.11.0-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1077478?format=api", "purl": "pkg:deb/debian/pyjwt@2.12.1-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.12.1-1%3Fdistro=trixie" } ], "aliases": [ "CVE-2024-53861", "GHSA-75c5-xw7c-p5pm" ], "risk_score": 1.4, "exploitability": "0.5", "weighted_severity": "2.7", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-5zts-netw-syay" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8874?format=api", "vulnerability_id": "VCID-dq17-gzkv-1bdb", "summary": "PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-29217.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-29217.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2022-29217", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54212", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54222", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54259", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.5428", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54236", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54257", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54275", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54226", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54229", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54178", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54202", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00311", "scoring_system": "epss", "scoring_elements": "0.54172", "published_at": "2026-04-02T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-29217" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/jpadilla/pyjwt", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jpadilla/pyjwt" }, { "reference_url": "https://github.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fc", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-23T15:52:55Z/" } ], "url": "https://github.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fc" }, { "reference_url": "https://github.com/jpadilla/pyjwt/releases/tag/2.4.0", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-23T15:52:55Z/" } ], "url": "https://github.com/jpadilla/pyjwt/releases/tag/2.4.0" }, { "reference_url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-23T15:52:55Z/" } ], "url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyjwt/PYSEC-2022-202.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyjwt/PYSEC-2022-202.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29217", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29217" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1011747", "reference_id": "1011747", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1011747" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2088544", "reference_id": "2088544", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2088544" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/", "reference_id": "5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-23T15:52:55Z/" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/", "reference_id": "6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-23T15:52:55Z/" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/" }, { "reference_url": "https://security.archlinux.org/AVG-2781", "reference_id": "AVG-2781", "reference_type": "", "scores": [ { "value": "Unknown", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2781" }, { "reference_url": "https://github.com/advisories/GHSA-ffqj-6fqr-9h24", "reference_id": "GHSA-ffqj-6fqr-9h24", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-ffqj-6fqr-9h24" }, { "reference_url": "https://usn.ubuntu.com/5526-1/", "reference_id": "USN-5526-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/5526-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/936137?format=api", "purl": "pkg:deb/debian/pyjwt@0?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@0%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936133?format=api", "purl": "pkg:deb/debian/pyjwt@1.7.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@1.7.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936136?format=api", "purl": "pkg:deb/debian/pyjwt@2.4.0-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.4.0-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936131?format=api", "purl": "pkg:deb/debian/pyjwt@2.6.0-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.6.0-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936135?format=api", "purl": "pkg:deb/debian/pyjwt@2.10.1-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.10.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936134?format=api", "purl": "pkg:deb/debian/pyjwt@2.11.0-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-shhe-tubm-f7f8" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.11.0-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1077478?format=api", "purl": "pkg:deb/debian/pyjwt@2.12.1-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyjwt@2.12.1-1%3Fdistro=trixie" } ], "aliases": [ "CVE-2022-29217", "GHSA-ffqj-6fqr-9h24", "PYSEC-2022-202" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-dq17-gzkv-1bdb" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/24430?format=api", "vulnerability_id": "VCID-shhe-tubm-f7f8", "summary": "PyJWT accepts unknown `crit` header extensions\n## Summary\n\nPyJWT does not validate the `crit` (Critical) Header Parameter defined in\nRFC 7515 §4.1.11. When a JWS token contains a `crit` array listing\nextensions that PyJWT does not understand, the library accepts the token\ninstead of rejecting it. This violates the **MUST** requirement in the RFC.\n\nThis is the same class of vulnerability as CVE-2025-59420 (Authlib),\nwhich received CVSS 7.5 (HIGH).\n\n---\n\n## RFC Requirement\n\nRFC 7515 §4.1.11:\n\n> The \"crit\" (Critical) Header Parameter indicates that extensions to this\n> specification and/or [JWA] are being used that **MUST** be understood and\n> processed. [...] If any of the listed extension Header Parameters are\n> **not understood and supported** by the recipient, then the **JWS is invalid**.\n\n---\n\n## Proof of Concept\n\n```python\nimport jwt # PyJWT 2.8.0\nimport hmac, hashlib, base64, json\n\n# Construct token with unknown critical extension\nheader = {\"alg\": \"HS256\", \"crit\": [\"x-custom-policy\"], \"x-custom-policy\": \"require-mfa\"}\npayload = {\"sub\": \"attacker\", \"role\": \"admin\"}\n\ndef b64url(data):\n return base64.urlsafe_b64encode(data).rstrip(b\"=\").decode()\n\nh = b64url(json.dumps(header, separators=(\",\", \":\")).encode())\np = b64url(json.dumps(payload, separators=(\",\", \":\")).encode())\nsig = b64url(hmac.new(b\"secret\", f\"{h}.{p}\".encode(), hashlib.sha256).digest())\ntoken = f\"{h}.{p}.{sig}\"\n\n# Should REJECT — x-custom-policy is not understood by PyJWT\ntry:\n result = jwt.decode(token, \"secret\", algorithms=[\"HS256\"])\n print(f\"ACCEPTED: {result}\")\n # Output: ACCEPTED: {'sub': 'attacker', 'role': 'admin'}\nexcept Exception as e:\n print(f\"REJECTED: {e}\")\n```\n\n**Expected:** `jwt.exceptions.InvalidTokenError: Unsupported critical extension: x-custom-policy`\n**Actual:** Token accepted, payload returned.\n\n### Comparison with RFC-compliant library\n\n```python\n# jwcrypto — correctly rejects\nfrom jwcrypto import jwt as jw_jwt, jwk\nkey = jwk.JWK(kty=\"oct\", k=b64url(b\"secret\"))\njw_jwt.JWT(jwt=token, key=key, algs=[\"HS256\"])\n# raises: InvalidJWSObject('Unknown critical header: \"x-custom-policy\"')\n```\n\n---\n\n## Impact\n\n- **Split-brain verification** in mixed-library deployments (e.g., API\n gateway using jwcrypto rejects, backend using PyJWT accepts)\n- **Security policy bypass** when `crit` carries enforcement semantics\n (MFA, token binding, scope restrictions)\n- **Token binding bypass** — RFC 7800 `cnf` (Proof-of-Possession) can be\n silently ignored\n- See CVE-2025-59420 for full impact analysis\n\n---\n\n## Suggested Fix\n\nIn `jwt/api_jwt.py`, add validation in `_validate_headers()` or\n`decode()`:\n\n```python\n_SUPPORTED_CRIT = {\"b64\"} # Add extensions PyJWT actually supports\n\ndef _validate_crit(self, headers: dict) -> None:\n crit = headers.get(\"crit\")\n if crit is None:\n return\n if not isinstance(crit, list) or len(crit) == 0:\n raise InvalidTokenError(\"crit must be a non-empty array\")\n for ext in crit:\n if ext not in self._SUPPORTED_CRIT:\n raise InvalidTokenError(f\"Unsupported critical extension: {ext}\")\n if ext not in headers:\n raise InvalidTokenError(f\"Critical extension {ext} not in header\")\n```\n\n---\n\n## CWE\n\n- CWE-345: Insufficient Verification of Data Authenticity\n- CWE-863: Incorrect Authorization\n\n## References\n\n- [RFC 7515 §4.1.11](https://www.rfc-editor.org/rfc/rfc7515.html#section-4.1.11)\n- [CVE-2025-59420 — Authlib crit bypass (CVSS 7.5)](https://osv.dev/vulnerability/GHSA-9ggr-2464-2j32)\n- [RFC 7800 — Proof-of-Possession Key Semantics](https://www.rfc-editor.org/rfc/rfc7800)", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32597.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32597.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-32597", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0001", "scoring_system": "epss", "scoring_elements": "0.01053", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.0001", "scoring_system": "epss", "scoring_elements": "0.01126", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.0001", "scoring_system": "epss", "scoring_elements": "0.01061", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.0001", "scoring_system": "epss", "scoring_elements": "0.01058", 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