Package Instance
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GET /api/packages/1067263?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/1067263?format=api", "purl": "pkg:deb/debian/cosign@2.6.3-1", "type": "deb", "namespace": "debian", "name": "cosign", "version": "2.6.3-1", "qualifiers": {}, "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/350491?format=api", "vulnerability_id": "VCID-8k12-ju2w-cygz", "summary": "Cosign's verify-blob-attestation reports false positive when payload parsing fails\n## Description\n\n`cosign verify-blob-attestation` may erroneously report a \"Verified OK\" result for attestations with malformed payloads or mismatched predicate types. For old-format bundles and detached signatures, this was due to a logic flaw in the error handling of the predicate type validation. For new-format bundles, the predicate type validation was bypassed completely.\n\n## Impact\n\nWhen `cosign verify-blob-attestation` is used without `--check-claims` set to `true`, an attestation that has a valid signature but a malformed or unparsable payload would be incorrectly validated. Additionally, systems relying on `--type <predicate type>` to reject attestations with mismatched types would be lead to trust the unexpected attestation type.\n\n## Patches\n\nv3.0.6, v2.6.3\n\n## Workarounds\n\nAlways set `--check-claims=true` for attestation verification.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-39395.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-39395.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-39395", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08216", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08236", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08246", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08227", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00031", "scoring_system": "epss", "scoring_elements": "0.08965", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11527", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11481", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11441", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11404", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11368", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11299", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11433", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00042", "scoring_system": "epss", "scoring_elements": "0.12781", "published_at": "2026-05-14T12:55:00Z" }, { "value": "0.00042", "scoring_system": "epss", "scoring_elements": "0.12689", "published_at": "2026-05-11T12:55:00Z" }, { "value": "0.00042", "scoring_system": "epss", "scoring_elements": "0.12716", "published_at": "2026-05-12T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-39395" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/sigstore/cosign", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sigstore/cosign" }, { "reference_url": "https://github.com/sigstore/cosign/security/advisories/GHSA-w6c6-c85g-mmv6", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "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/2026-04-08T15:49:08Z/" } ], "url": "https://github.com/sigstore/cosign/security/advisories/GHSA-w6c6-c85g-mmv6" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39395", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39395" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133005", "reference_id": "1133005", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133005" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456254", "reference_id": "2456254", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456254" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/586244?format=api", "purl": "pkg:deb/debian/cosign@2.6.2-1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-8k12-ju2w-cygz" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/cosign@2.6.2-1" }, { "url": "http://public2.vulnerablecode.io/api/packages/1067263?format=api", "purl": "pkg:deb/debian/cosign@2.6.3-1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/cosign@2.6.3-1" } ], "aliases": [ "CVE-2026-39395", "GHSA-w6c6-c85g-mmv6" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-8k12-ju2w-cygz" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/cosign@2.6.3-1" }