CVE-2026-93355 — LiteLLM Weak JWT Authentication via Email-Based User Lookup
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 ex…
Published: 2026-09-28 · CVSS: 7.6 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7