{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67437","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-29T15:07:24.991Z","datePublished":"2026-07-29T20:43:05.167Z","dateUpdated":"2026-07-30T14:15:32.590Z"},"containers":{"cna":{"title":"OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-401","lang":"en","description":"CWE-401: Missing Release of Memory after Effective Lifetime","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch"},{"name":"https://github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c517b3f","tags":["x_refsource_MISC"],"url":"https://github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c517b3f"},{"name":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0","tags":["x_refsource_MISC"],"url":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"}],"affected":[{"vendor":"OliveTin","product":"OliveTin","versions":[{"version":">= 3000.0.0, < 3000.17.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-29T20:43:05.167Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-xpxj-f2fm-rqch","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-30T14:15:21.569770Z","id":"CVE-2026-67437","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-30T14:15:32.590Z"}}]}}