{
    "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"
            }
        }
    }
}