{"id":"CVE-2026-104633","state":"PUBLISHED","title":"Gitea migration memory exhaustion from zero page size","description":"When migrating a repository from another Gitea instance, Gitea used the page size reported in the source server's API settings to end its paginated downloads. A source that reported `max_response_items` as `0` made these loops run indefinitely and grow server memory until it was exhausted. Any user who can migrate repositories could point a migration at a server they control and cause a denial of service.","publishedAt":"2026-10-06T21:35:26.516Z","updatedAt":"2026-10-07T15:53:48.550Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"28.0.0","versionType":"semver"}]}],"references":["https://github.com/go-gitea/gitea/security/advisories/GHSA-jj5r-9rpc-8h6h","https://github.com/go-gitea/gitea/pull/39501","https://github.com/go-gitea/gitea/pull/39507","https://blog.gitea.com/release-of-28.1.0/","https://github.com/go-gitea/gitea/releases/tag/v28.1.0"],"weaknesses":["CWE-400","CWE-835"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/104xxx/CVE-2026-104633.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-104633","state":"PUBLISHED","datePublished":"2026-10-06T21:35:26.516Z","dateUpdated":"2026-10-07T15:53:48.550Z","assignerShortName":"Gitea","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateReserved":"2026-10-04T22:02:04.892Z"},"containers":{"cna":{"title":"Gitea migration memory exhaustion from zero page size","descriptions":[{"lang":"en","value":"When migrating a repository from another Gitea instance, Gitea used the page size reported in the source server's API settings to end its paginated downloads. A source that reported `max_response_items` as `0` made these loops run indefinitely and grow server memory until it was exhausted. Any user who can migrate repositories could point a migration at a server they control and cause a denial of service."}],"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-jj5r-9rpc-8h6h","name":"GitHub Security Advisory GHSA-jj5r-9rpc-8h6h","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"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","type":"CWE","description":"CWE-400: Uncontrolled Resource Consumption"},{"cweId":"CWE-835","lang":"en","type":"CWE","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')"}]}],"providerMetadata":{"shortName":"Gitea","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateUpdated":"2026-10-06T21:35:26.516Z"},"credits":[{"lang":"en","value":"https://github.com/kewmine","type":"reporter"},{"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":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T15:51:08.820853Z","id":"CVE-2026-104633","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-07T15:53:48.550Z"}}]}}}