Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/67929?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/67929?format=api", "vulnerability_id": "VCID-vtc5-gt7p-4bcd", "summary": "Gitsign is a keyless Sigstore to signing tool for Git commits with your a GitHub / OIDC identity. Prior to 0.16.0, gitsign verify and gitsign verify-tag re-encode commit/tag objects through go-git's EncodeWithoutSignature before checking the signature, instead of verifying against the raw git object bytes. For malformed objects with duplicate tree headers, git-core and go-git parse different trees: git-core uses the first, go-git uses the second. A signature crafted over the go-git-normalized form (second tree) passes gitsign verify while git-core resolves the commit to a completely different tree. This breaks the invariant that a verified signature, the commit semantics git-core presents to users, and the object hash logged in Rekor all refer to the same content. This vulnerability is fixed in 0.16.0.", "aliases": [ { "alias": "CVE-2026-44309" }, { "alias": "GHSA-7rmh-48mx-2vwc" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/1076681?format=api", "purl": "pkg:deb/debian/gitsign@0.16.0-1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/gitsign@0.16.0-1" }, { "url": "http://public2.vulnerablecode.io/api/packages/43305?format=api", "purl": "pkg:deb/debian/gitsign@0.16.0-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/gitsign@0.16.0-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1206452?format=api", "purl": "pkg:deb/debian/gitsign@0.16.1-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/gitsign@0.16.1-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/375948?format=api", "purl": "pkg:golang/github.com/sigstore/gitsign@0.16.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:golang/github.com/sigstore/gitsign@0.16.0" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/43307?format=api", "purl": "pkg:deb/debian/gitsign@0.13.0-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6rwy-1v1h-ekfq" }, { "vulnerability": "VCID-vtc5-gt7p-4bcd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/gitsign@0.13.0-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1076680?format=api", "purl": "pkg:deb/debian/gitsign@0.13.0-2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6rwy-1v1h-ekfq" }, { "vulnerability": "VCID-vtc5-gt7p-4bcd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/gitsign@0.13.0-2" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44309", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02106", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02097", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.021", "published_at": "2026-06-12T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44309" }, { "reference_url": "https://github.com/sigstore/gitsign", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sigstore/gitsign" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44309", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44309" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1136789", "reference_id": "1136789", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1136789" }, { "reference_url": "https://github.com/sigstore/gitsign/security/advisories/GHSA-7rmh-48mx-2vwc", "reference_id": "GHSA-7rmh-48mx-2vwc", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N" }, { "value": "MODERATE", "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/2026-05-15T17:43:27Z/" } ], "url": "https://github.com/sigstore/gitsign/security/advisories/GHSA-7rmh-48mx-2vwc" } ], "weaknesses": [ { "cwe_id": 295, "name": "Improper Certificate Validation", "description": "The product does not validate, or incorrectly validates, a certificate." }, { "cwe_id": 347, "name": "Improper Verification of Cryptographic Signature", "description": "The product does not verify, or incorrectly verifies, the cryptographic signature for data." } ], "exploits": [], "severity_range_score": "4.0 - 6.9", "exploitability": "0.5", "weighted_severity": "6.2", "risk_score": 3.1, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-vtc5-gt7p-4bcd" }