{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-101023", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-10-04T22:02:04.874Z", "datePublished": "2026-10-06T21:34:53.642Z", "dateUpdated": "2026-10-06T21:34:53.642Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-10-06T21:34:53.642Z"}, "title": "Gitea OAuth2 refresh token grant accepts access tokens", "descriptions": [{"lang": "en", "value": "Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime."}], "affected": [{"vendor": "Gitea", "product": "Gitea", "packageName": "gitea.dev", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "28.0.0", "versionType": "semver"}]}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-469m-x4mw-38r3", "name": "GitHub Security Advisory GHSA-469m-x4mw-38r3", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/39501", "name": "Fix: go-gitea/gitea pull request #39501", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/pull/39507", "name": "Fix backport to release/v28: go-gitea/gitea pull request #39507", "tags": ["patch"]}, {"url": "https://blog.gitea.com/release-of-28.1.0/", "name": "Gitea 28.1.0 release announcement", "tags": ["release-notes"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v28.1.0", "name": "go-gitea/gitea v28.1.0 release", "tags": ["release-notes"]}], "credits": [{"lang": "en", "value": "https://github.com/rezmoss", "type": "reporter"}, {"lang": "en", "value": "https://github.com/manus-use", "type": "reporter"}, {"lang": "en", "value": "https://github.com/danieltk76", "type": "reporter"}, {"lang": "en", "value": "https://github.com/gigioneggiando", "type": "reporter"}, {"lang": "en", "value": "https://github.com/DshtAnger", "type": "reporter"}, {"lang": "en", "value": "https://github.com/manus-pi", "type": "reporter"}, {"lang": "en", "value": "https://github.com/silverwind", "type": "remediation developer"}, {"lang": "en", "value": "https://github.com/bircni", "type": "remediation developer"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "gitea.dev", "product": "Gitea", "vendor": "Gitea", "versions": [{"lessThanOrEqual": "28.0.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime."}], "id": "CVE-2026-101023", "lastModified": "2026-10-06T22:16:59.737", "metrics": {}, "published": "2026-10-06T22:16:59.737", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://blog.gitea.com/release-of-28.1.0/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/39501"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/39507"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/releases/tag/v28.1.0"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-469m-x4mw-38r3"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,28.0.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Gitea", "source": "cna", "vendor": "Gitea"}, "product": "gitea", "vendor": "gitea"}], "created": "2026-10-06T23:15:06.953268+00:00", "updated": "2026-10-07T04:30:11.446820+00:00", "vendors": ["gitea", "gitea$PRODUCT$gitea"], "weaknesses": ["CWE-640"]}