{"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": "2026-10-29T17:01:40.294Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "sigstore-js", "vendor": "sigstore", "versions": [{"status": "affected", "version": "< 0.7.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-118763", "lastModified": "2026-10-29T17:18:07.230", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-29T17:18:07.230", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-js/commit/b855f46cfe81f26481c6d3f4b333dfd00f2fd1b1"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-js/commit/e4ca65c3ab3c675456ab9b0bd04217ceccad3558"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-js/pull/1762"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-js/releases/tag/@sigstore/oci@0.7.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-js/security/advisories/GHSA-j63v-mwhm-56jx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-522"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}