CVE-2026-90562

LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

HIGH
8.1
CVSS Score
Published: September 13, 2026 at 10:45 AM UTC
Updated: September 23, 2026 at 05:30 PM UTC
1 product affected across 1 vendorLangBot

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Severity
HIGH8.1
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.0.8.1 ≤ v < 4.10.114.0.8.1
Affected range stops below 4.10.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-331

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