{"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":"2026-10-07T20:10:45.979Z"},"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"}]},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T20:10:08.050555Z","id":"CVE-2026-96399","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-07T20:10:45.979Z"}}]}}