CVE-2026-90562

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.

References

• https://github.com/langbot-app/LangBot
• https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/api/http/controller/groups/user.py
• https://github.com/langbot-app/LangBot/blob/v4.10.2/src/langbot/pkg/core/stages/genkeys.py
• https://github.com/langbot-app/LangBot/commit/267232c24f93c515d6fd3f7f81c0676066ab1ab8
• https://github.com/langbot-app/LangBot/issues/2392