{"id":"DEBIAN-CVE-2026-44310","details":"Gitsign is a keyless Sigstore to signing tool for Git commits with your a GitHub / OIDC identity. From 0.4.0 to before 0.15.0, CertVerifier.Verify() in pkg/git/verifier.go unconditionally dereferences certs[0] after sd.GetCertificates() without checking the slice length. A CMS/PKCS7 signed message with an empty certificate set is a structurally valid DER payload; GetCertificates() returns an empty slice with no error, causing an immediate index-out-of-range panic. On the gitsign --verify code path (the GPG-compatible mode invoked by git verify-commit), the panic is silently recovered by internal/io/streams.go's Wrap() function, which returns nil instead of an error. main.go then exits with code 0, causing exit-code-only verification callers to interpret the failed verification as success. This vulnerability is fixed in 0.15.0.","modified":"2026-08-27T23:06:09.384005541Z","published":"2026-05-15T17:16:47.430Z","upstream":["CVE-2026-44310"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-44310"}],"affected":[{"package":{"name":"gitsign","ecosystem":"Debian:13","purl":"pkg:deb/debian/gitsign?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13.0-2","0.13.0-3","0.13.0-4","0.13.0-4~exp0","0.14.0-1","0.14.0-1~exp0","0.16.0-1","0.16.1-1","0.16.1-2","0.16.1-2~exp0","0.16.1-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44310.json"}},{"package":{"name":"gitsign","ecosystem":"Debian:14","purl":"pkg:deb/debian/gitsign?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.0-1"}]}],"versions":["0.13.0-2","0.13.0-3","0.13.0-4","0.13.0-4~exp0","0.14.0-1","0.14.0-1~exp0"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44310.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L"}]}