{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-24408", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-22T18:19:49.174Z", "datePublished": "2026-01-26T22:21:35.047Z", "dateUpdated": "2026-01-26T22:21:35.047Z"}, "containers": {"cna": {"title": "sigstore has CSRF possibility in OIDC authentication during signing", "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery (CSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 0, "baseSeverity": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/sigstore/sigstore-python/security/advisories/GHSA-hm8f-75xx-w2vr", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/sigstore/sigstore-python/security/advisories/GHSA-hm8f-75xx-w2vr"}, {"name": "https://github.com/sigstore/sigstore-python/commit/5e77497fe8f0b202bdd118949074ec2f20da69aa", "tags": ["x_refsource_MISC"], "url": "https://github.com/sigstore/sigstore-python/commit/5e77497fe8f0b202bdd118949074ec2f20da69aa"}, {"name": "https://github.com/sigstore/sigstore-python/releases/tag/v4.2.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/sigstore/sigstore-python/releases/tag/v4.2.0"}], "affected": [{"vendor": "sigstore", "product": "sigstore-python", "versions": [{"version": "< 4.2.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-26T22:21:35.047Z"}, "descriptions": [{"lang": "en", "value": "sigstore-python is a Python tool for generating and verifying Sigstore signatures. Prior to version 4.2.0, the sigstore-python OAuth authentication flow is susceptible to Cross-Site Request Forgery. `_OAuthSession` creates a unique \"state\" and sends it as a parameter in the authentication request but the \"state\" in the server response seems not not be cross-checked with this value. Version 4.2.0 contains a patch for the issue."}], "source": {"advisory": "GHSA-hm8f-75xx-w2vr", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "sigstore-python is a Python tool for generating and verifying Sigstore signatures. Prior to version 4.2.0, the sigstore-python OAuth authentication flow is susceptible to Cross-Site Request Forgery. `_OAuthSession` creates a unique \"state\" and sends it as a parameter in the authentication request but the \"state\" in the server response seems not not be cross-checked with this value. Version 4.2.0 contains a patch for the issue."}], "id": "CVE-2026-24408", "lastModified": "2026-01-26T23:16:08.973", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 0.0, "baseSeverity": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 0.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-01-26T23:16:08.973", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-python/commit/5e77497fe8f0b202bdd118949074ec2f20da69aa"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-python/releases/tag/v4.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/sigstore/sigstore-python/security/advisories/GHSA-hm8f-75xx-w2vr"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}