{"id":"CVE-2026-90562","title":"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","summary":"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 t…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-331"],"vendor":"langbot-app","product":"LangBot","affected":["LangBot >= 4.0.8.1 < 4.10.11"],"published":"2026-09-13","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:47.433","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90562","references":[{"url":"https://github.com/langbot-app/LangBot","label":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/api/http/controller/groups/user.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/core/stages/genkeys.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/commit/267232c24f93c515d6fd3f7f81c0676066ab1ab8","label":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/issues/2392","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/langbot-before-4.10.11-authentication-bypass-via-weak-recovery-key","label":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/issues/2392","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00424,"epssPercentile":0.3635,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-16T14:01:27.102549Z"},"ingestedAt":"2026-09-14T15:23:07.471Z","slug":"CVE-2026-90562","body":"## Overview\n\nLangBot 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":205313,"id":"CVE-2026-90562","ts":1789570708182,"field":"exploit_available","old":"false","new":"true"}]}