{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-96399", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-10-04T21:59:53.543Z", "datePublished": "2026-10-06T19:25:18.075Z", "dateUpdated": "2026-10-06T19:25:18.075Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-10-06T19:25:18.075Z"}, "title": "Gitea denial of service through external issue tracker patterns", "descriptions": [{"lang": "en", "value": "A repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue references, causing a runtime panic that terminated the Gitea process. A user who can edit a repository's external issue tracker settings could make any later rendering of matching content, such as viewing a README, crash the instance for all users."}], "affected": [{"vendor": "Gitea", "product": "Gitea", "packageName": "gitea.dev", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "1.27.3", "versionType": "semver"}]}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-mw6q-qj47-9g5q", "name": "GitHub Security Advisory GHSA-mw6q-qj47-9g5q", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/39354", "name": "Fix: go-gitea/gitea pull request #39354", "tags": ["patch"]}, {"url": "https://blog.gitea.com/release-of-28.0.0/", "name": "Gitea 28.0.0 release announcement", "tags": ["release-notes"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0", "name": "go-gitea/gitea v28.0.0 release", "tags": ["release-notes"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125: Out-of-bounds Read"}, {"lang": "en", "type": "CWE", "cweId": "CWE-248", "description": "CWE-248: Uncaught Exception"}]}], "credits": [{"lang": "en", "value": "https://github.com/davue", "type": "reporter"}, {"lang": "en", "value": "https://github.com/breken-ai", "type": "remediation developer"}, {"lang": "en", "value": "https://github.com/wxiaoguang", "type": "remediation developer"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "gitea.dev", "product": "Gitea", "vendor": "Gitea", "versions": [{"lessThanOrEqual": "1.27.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue references, causing a runtime panic that terminated the Gitea process. A user who can edit a repository's external issue tracker settings could make any later rendering of matching content, such as viewing a README, crash the instance for all users."}], "id": "CVE-2026-96399", "lastModified": "2026-10-07T13:45:36.947", "metrics": {}, "published": "2026-10-06T20:17:35.270", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://blog.gitea.com/release-of-28.0.0/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/39354"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-mw6q-qj47-9g5q"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-248"}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.27.3]"}}], "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": "2026-10-06T22:45:07.082903+00:00", "updated": "2026-10-07T00:45:08.403844+00:00", "vendors": ["gitea", "gitea$PRODUCT$gitea"]}