{"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"}}]}}

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