CVE-2026-90562

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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
https://www.vulncheck.com/advisories/langbot-before-4.10.11-authentication-bypass-via-weak-recovery-key
https://github.com/langbot-app/LangBot/issues/2392

Configurations

No configuration.

History

16 Sep 2026, 15:18

Type	Values Removed	Values Added
References	~~() https://github.com/langbot-app/LangBot/issues/2392 -~~	() https://github.com/langbot-app/LangBot/issues/2392 -

Information

Published : 2026-09-13 11:17

Updated : 2026-09-16 15:18

NVD link : CVE-2026-90562

Mitre link : CVE-2026-90562

CVE.ORG link : CVE-2026-90562

JSON object : View

Products Affected

No product.

CWE

CWE-331

Insufficient Entropy

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