CVE-2026-90562
LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key
- State
- Published
- Severity
- 9.2 Critical
- Published
- Sep 13, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | 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 | VulnCheck |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-331 Insufficient Entropy
Affected Products
| Product | Versions |
|---|---|
LangBotlangbot-app |
|
References
- GitHub Issue #2392issue-tracking
- https://github.com/langbot-app/LangBotproduct
- https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/core/stages/genkeys.pytechnical-description
- https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/api/http/controller/groups/user.pytechnical-description
- https://github.com/langbot-app/LangBot/commit/267232c24f93c515d6fd3f7f81c0676066ab1ab8patch
- VulnCheck Advisory: LangBot before 4.10.11 Authentication Bypass via Weak Recovery Keythird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.