{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-118763","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-28T19:20:05.017Z","datePublished":"2026-10-29T17:01:40.294Z","dateUpdated":"2026-10-30T17:13:12.761Z"},"containers":{"cna":{"title":"@sigstore/oci sends the registry Authorization header to a cross-host blob-upload Location","problemTypes":[{"descriptions":[{"cweId":"CWE-522","lang":"en","description":"CWE-522: Insufficiently Protected Credentials","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-j63v-mwhm-56jx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-j63v-mwhm-56jx"},{"name":"https://github.com/sigstore/sigstore-js/pull/1762","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/pull/1762"},{"name":"https://github.com/sigstore/sigstore-js/commit/b855f46cfe81f26481c6d3f4b333dfd00f2fd1b1","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/commit/b855f46cfe81f26481c6d3f4b333dfd00f2fd1b1"},{"name":"https://github.com/sigstore/sigstore-js/commit/e4ca65c3ab3c675456ab9b0bd04217ceccad3558","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/commit/e4ca65c3ab3c675456ab9b0bd04217ceccad3558"},{"name":"https://github.com/sigstore/sigstore-js/releases/tag/@sigstore/oci@0.7.2","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/releases/tag/@sigstore/oci@0.7.2"}],"affected":[{"vendor":"sigstore","product":"sigstore-js","versions":[{"version":"< 0.7.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-29T17:01:40.294Z"},"descriptions":[{"lang":"en","value":"sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 0.7.2, packages/oci/src/registry.ts contains a RegistryClient.signIn() method that stores registry Authorization and Docker configuration headers as defaults on a shared HTTP client, while RegistryClient.uploadBlob() sends a fresh PUT to an absolute blob-upload Location supplied by the registry without checking that its origin or scheme matches the registry. A malicious or compromised registry can therefore direct a user pushing an artifact through attachArtifactToImage() to an attacker-controlled host and receive the registry bearer token, Basic credentials, or custom authentication headers. Redirect-time header stripping does not prevent the leak because the cross-host PUT is a new explicit request rather than a followed redirect. This is a residual of CVE-2026-59891, whose fix changed credential selection in credentials.ts but did not constrain where credentials are sent from registry.ts. Version 0.7.2 fixes the issue by separating registry credentials from client-wide defaults and sending them only to the registry origin."}],"source":{"advisory":"GHSA-j63v-mwhm-56jx","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T15:20:32.038162Z","id":"CVE-2026-118763","options":[{"Exploitation":"none"},{"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":"2026-10-30T17:13:12.761Z"}}]}}