{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-90562", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-12T11:13:43.327Z", "datePublished": "2026-09-13T10:45:36.684Z", "dateUpdated": "2026-09-24T14:21:47.359Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-24T14:21:47.359Z" }, "datePublic": "2026-08-04T00:00:00.000Z", "title": "LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key", "descriptions": [ { "lang": "en", "value": "LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and gain account access." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Insufficient Entropy", "cweId": "CWE-331", "type": "CWE" } ] } ], "affected": [ { "vendor": "langbot-app", "product": "LangBot", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/langbot", "versions": [ { "version": "4.0.8.1", "lessThan": "4.10.11", "status": "affected", "versionType": "custom" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:langbot:langbot:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0.8.1", "versionEndExcluding": "4.10.11" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/langbot-app/LangBot/issues/2392", "tags": [ "issue-tracking" ], "name": "GitHub Issue #2392" }, { "url": "https://github.com/langbot-app/LangBot", "tags": [ "product" ] }, { "url": "https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/core/stages/genkeys.py", "tags": [ "technical-description" ] }, { "url": "https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/api/http/controller/groups/user.py", "tags": [ "technical-description" ] }, { "url": "https://github.com/langbot-app/LangBot/commit/267232c24f93c515d6fd3f7f81c0676066ab1ab8", "tags": [ "patch" ] }, { "name": "VulnCheck Advisory: LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/langbot-before-4.10.11-authentication-bypass-via-weak-recovery-key" } ], "credits": [ { "lang": "en", "value": "George Chen", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://github.com/langbot-app/LangBot/issues/2392", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-16T14:01:27.102549Z", "id": "CVE-2026-90562", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-16T14:01:56.471Z" } } ] } }