{"id":"CVE-2026-67437","aliases":["GHSA-xpxj-f2fm-rqch","GO-2026-6146"],"url":"https://o3.security/vulnerability/CVE-2026-67437","summary":"OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)","details":"OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapi_auth_oauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or bounding entries, allowing an unauthenticated attacker to exhaust memory and cause a denial of service. This issue is fixed in version 3000.17.0.","published":"2026-07-29T20:43:05.167Z","modified":"2026-09-09T18:26:41.663362245Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.0035,"percentile":0.28202,"asOf":"2026-09-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/OliveTin/OliveTin","fixedVersion":"0.0.0-20260708075951-ec114e95d297"}],"fix":{"url":"https://github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c517b3f","label":"OliveTin/OliveTin@ec114e9"},"references":[{"type":"WEB","url":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67437.json"},{"type":"ADVISORY","url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67437"},{"type":"FIX","url":"https://github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c517b3f"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T18:26:41.663362245Z"}}