{"id":"CVE-2026-90562","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-90562","generatedAt":"2026-09-20T15:57:31.211Z","title":"Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and gain account access.","description":"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.","published":"2026-09-13T11:17:01.000Z","lastModified":"2026-09-16T15:18:29.000Z","status":"Received","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.2,"severity":"CRITICAL","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-331"],"affected":[],"epss":{"score":0.00424,"percentile":0.36325,"date":"2026-09-19","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/langbot-app/LangBot","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/api/http/controller/groups/user.py","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/core/stages/genkeys.py","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/commit/267232c24f93c515d6fd3f7f81c0676066ab1ab8","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/issues/2392","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/langbot-before-4.10.11-authentication-bypass-via-weak-recovery-key","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langbot-app/LangBot/issues/2392","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90562","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}