{"id":"CVE-2026-96580","state":"PUBLISHED","title":"Gitea Actions memory exhaustion through large static matrices","description":"Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow file whose matrix expands to a very large number of jobs, consuming server memory and potentially terminating the Gitea process. No runner is required. Static matrices above 256 combinations are now rejected before expansion.","publishedAt":"2026-10-06T19:25:33.619Z","updatedAt":"2026-10-07T20:09:31.410Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Gitea","products":["Gitea Gitea"],"affected":[{"vendor":"Gitea","product":"Gitea","packageName":"gitea.dev","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.27.3","versionType":"semver"}]}],"references":["https://github.com/go-gitea/gitea/security/advisories/GHSA-p3rv-cr5f-9gjh","https://github.com/go-gitea/gitea/pull/39295","https://blog.gitea.com/release-of-28.0.0/","https://github.com/go-gitea/gitea/releases/tag/v28.0.0"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/96xxx/CVE-2026-96580.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-96580","state":"PUBLISHED","datePublished":"2026-10-06T19:25:33.619Z","dateUpdated":"2026-10-07T20:09:31.410Z","assignerShortName":"Gitea","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateReserved":"2026-10-04T21:59:53.570Z"},"containers":{"cna":{"title":"Gitea Actions memory exhaustion through large static matrices","descriptions":[{"lang":"en","value":"Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow file whose matrix expands to a very large number of jobs, consuming server memory and potentially terminating the Gitea process. No runner is required. Static matrices above 256 combinations are now rejected before expansion."}],"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-p3rv-cr5f-9gjh","name":"GitHub Security Advisory GHSA-p3rv-cr5f-9gjh","tags":["vendor-advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/39295","name":"Fix: go-gitea/gitea pull request #39295","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":[{"cweId":"CWE-400","lang":"en","type":"CWE","description":"CWE-400: Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"Gitea","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateUpdated":"2026-10-06T19:25:33.619Z"},"credits":[{"lang":"en","value":"https://github.com/smoke-wolf","type":"reporter"},{"lang":"en","value":"https://github.com/Kushalkhemka","type":"finder"},{"lang":"en","value":"https://github.com/mayank-jangid-moon","type":"finder"},{"lang":"en","value":"https://github.com/skigeek16","type":"finder"},{"lang":"en","value":"https://github.com/opensec-intelligence","type":"tool"},{"lang":"en","value":"https://github.com/silverwind","type":"remediation developer"},{"lang":"en","value":"https://github.com/bircni","type":"remediation developer"}]},"adp":[{"title":"CISA ADP Vulnrichment","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":"2026-10-07T20:09:08.500896Z","id":"CVE-2026-96580","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-07T20:09:31.410Z"}}]}}}