{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44310","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-05T19:00:06.021Z","datePublished":"2026-05-15T16:17:53.558Z","dateUpdated":"2026-05-15T16:44:36.684Z"},"containers":{"cna":{"title":"gitsign --verify panics on empty-certificate PKCS7 and exits 0, bypassing exit-code callers","problemTypes":[{"descriptions":[{"cweId":"CWE-129","lang":"en","description":"CWE-129: Improper Validation of Array Index","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-390","lang":"en","description":"CWE-390: Detection of Error Condition Without Action","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/sigstore/gitsign/security/advisories/GHSA-7c37-gx6w-8vc5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sigstore/gitsign/security/advisories/GHSA-7c37-gx6w-8vc5"}],"affected":[{"vendor":"sigstore","product":"gitsign","versions":[{"version":">= 0.4.0, < 0.15.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-15T16:17:53.558Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-7c37-gx6w-8vc5","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/sigstore/gitsign/security/advisories/GHSA-7c37-gx6w-8vc5","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-15T16:44:32.980771Z","id":"CVE-2026-44310","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-15T16:44:36.684Z"}}]}}