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CVE PROGRAM SOURCE RECORD7.6 High

CVE-2026-93355

LiteLLM Weak JWT Authentication via Email-Based User Lookup

Description

LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentication flow without verifying the email_verified claim. Attackers can present a token with an unverified email address matching a victim's account to inherit the victim's role, including proxy_admin privileges, and permanently overwrite the victim's stored identity binding to retain persistent unauthorized access to administrative endpoints exposing API keys and user management.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

BerriAI litellm

Default version status: unknown

  • 0 to ≤ 1.102.1affected
  • 0 to ≤ f4308bc124eebc783dfc51790ce8db27ed21ae00affected
pkg:github/BerriAI/litellm

References