Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/30244?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/30244?format=api", "vulnerability_id": "VCID-ypj9-hez8-qbcs", "summary": "Flask uses fallback key instead of current signing key\nIn Flask 3.1.0, the way fallback key configuration was handled resulted in the last fallback key being used for signing, rather than the current signing key.\n\nSigning is provided by the `itsdangerous` library. A list of keys can be passed, and it expects the last (top) key in the list to be the most recent key, and uses that for signing. Flask was incorrectly constructing that list in reverse, passing the signing key first.\n\nSites that have opted-in to use key rotation by setting `SECRET_KEY_FALLBACKS` are likely to unexpectedly be signing their sessions with stale keys, and their transition to fresher keys will be impeded. Sessions are still signed, so this would not cause any sort of data integrity loss.", "aliases": [ { "alias": "CVE-2025-47278" }, { "alias": "GHSA-4grg-w6v8-c28g" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/922385?format=api", "purl": "pkg:deb/debian/flask@0?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@0%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/922381?format=api", "purl": "pkg:deb/debian/flask@1.1.2-2%2Bdeb11u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@1.1.2-2%252Bdeb11u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/922379?format=api", "purl": "pkg:deb/debian/flask@2.2.2-3?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@2.2.2-3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/922384?format=api", "purl": "pkg:deb/debian/flask@3.1.1-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@3.1.1-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/922382?format=api", "purl": "pkg:deb/debian/flask@3.1.2-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@3.1.2-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/922383?format=api", "purl": "pkg:deb/debian/flask@3.1.3-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@3.1.3-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/71008?format=api", "purl": "pkg:pypi/flask@3.1.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/flask@3.1.1" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/71007?format=api", "purl": "pkg:pypi/flask@3.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rx8q-6dwq-a3hs" }, { "vulnerability": "VCID-ypj9-hez8-qbcs" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/flask@3.1.0" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-47278.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.3", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-47278.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-47278", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28181", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28768", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28815", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28622", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28687", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28726", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28731", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28639", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28659", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28634", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28585", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28472", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.2836", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28284", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00106", "scoring_system": "epss", "scoring_elements": "0.28123", "published_at": "2026-05-05T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-47278" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "1.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/pallets/flask", "reference_id": "", "reference_type": "", "scores": [ { "value": "1.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pallets/flask" }, { "reference_url": "https://github.com/pallets/flask/commit/73d6504063bfa00666a92b07a28aaf906c532f09", "reference_id": "", "reference_type": "", "scores": [ { "value": "1.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-13T20:13:56Z/" } ], "url": "https://github.com/pallets/flask/commit/73d6504063bfa00666a92b07a28aaf906c532f09" }, { "reference_url": "https://github.com/pallets/flask/releases/tag/3.1.1", "reference_id": "", "reference_type": "", "scores": [ { "value": "1.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-13T20:13:56Z/" } ], "url": "https://github.com/pallets/flask/releases/tag/3.1.1" }, { "reference_url": "https://github.com/pallets/flask/security/advisories/GHSA-4grg-w6v8-c28g", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "1.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-13T20:13:56Z/" } ], "url": "https://github.com/pallets/flask/security/advisories/GHSA-4grg-w6v8-c28g" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47278", "reference_id": "", "reference_type": "", "scores": [ { "value": "1.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47278" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1105794", "reference_id": "1105794", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1105794" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2365965", "reference_id": "2365965", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2365965" }, { "reference_url": "https://github.com/advisories/GHSA-4grg-w6v8-c28g", "reference_id": "GHSA-4grg-w6v8-c28g", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-4grg-w6v8-c28g" }, { "reference_url": "https://usn.ubuntu.com/7534-1/", "reference_id": "USN-7534-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/7534-1/" } ], "weaknesses": [ { "cwe_id": 683, "name": "Function Call With Incorrect Order of Arguments", "description": "The product calls a function, procedure, or routine, but the caller specifies the arguments in an incorrect order, leading to resultant weaknesses." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": "0.1 - 3", "exploitability": "0.5", "weighted_severity": "2.7", "risk_score": 1.4, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ypj9-hez8-qbcs" }