{"id":"CVE-2026-104633","summary":"Gitea migration memory exhaustion from zero page size","details":"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.","aliases":["BIT-gitea-2026-104633","GHSA-jj5r-9rpc-8h6h"],"modified":"2026-10-24T10:35:51.397140431Z","published":"2026-10-06T21:35:26.516Z","database_specific":{"cwe_ids":["CWE-400","CWE-835"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104633.json","cna_assigner":"Gitea"},"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/release-of-28.1.0/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104633.json"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v28.1.0"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-jj5r-9rpc-8h6h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104633"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39501"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39507"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-gitea/gitea","events":[{"introduced":"0"},{"fixed":"4ebd5e319b6a9e629bfd7a04292a6fe85b08dee9"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"28.1.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*"},{"range":[{"fixed":"4ebd5e319b6a9e629bfd7a04292a6fe85b08dee9"}],"source":"REFERENCES_TAG","original_tag":"v28.1.0"}]}}],"versions":["v28.0.0","v29.0.0-dev","v1.28.0-dev","v1.27.0-dev","v1.26.0-dev","v1.25.0-dev","v1.24.0-dev","v1.22.0-rc1","v1.23.0-dev","v1.22.0-rc0","v1.21.0-rc0","v1.22.0-dev","v1.20.0-rc0","v1.21.0-dev","v1.20.0-dev","v1.19.0-rc0","v1.18.0-rc0","v1.19.0-dev","v1.18.0-dev","v1.17.0-dev","v1.16.0-rc1","v1.15.0-rc1","v1.16.0-dev","v1.15.0-dev","v1.14.0-dev","v1.13.0-dev","v1.12.0-dev","v1.10.5","v1.11.0-rc1","v1.10.0-rc1","v1.11.0-dev","v1.9.0-rc1","v1.10.0-dev","v1.9.0-dev","v1.7.0-dev","v1.6.0-rc1","v1.6.0-dev","v1.5.0-rc1","v1.5.0-dev","v1.1.0","v1.0.0","v0.9.99"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-104633.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}