CVE-2026-12796: BerriAI LiteLLM SSO Login Fails to Invalidate Previous Session Tokens

# CVE-2026-12796: BerriAI LiteLLM SSO Login Fails to Invalidate Previous Session Tokens

https://gcdradar.vercel.app/incidents/cve-2026-12796-berriai-litellm-sso-login-fails-to-invalidate · AIR-2026-0786 · closed 2026-06-21

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-06-21
- AI role: Attack on AI
- Products: LiteLLM
- CVE ids: CVE-2026-12796
- CVSS: 6.3

## Summary

A vulnerability in LiteLLM up to version 1.82.2 fails to invalidate previous UI session tokens during SSO login. The security flaw allows remote attackers to manipulate session expiration.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-06-21: CVE-2026-12796: A vulnerability was identified in BerriAI litellm up to 1.82.2. (https://nvd.nist.gov/vuln/detail/CVE-2026-12796)
- 2026-06-21: CVE-2026-12796: BerriAI litellm: SSO Login Does Not Invalidate Previous UI Session Tokens (https://github.com/advisories/GHSA-w2mh-qq9q-453x)

## Sources

- 2026-06-21 GitHub Advisory Database: CVE-2026-12796: BerriAI litellm: SSO Login Does Not Invalidate Previous UI Session Tokens https://github.com/advisories/GHSA-w2mh-qq9q-453x
- 2026-06-21 NVD: CVE-2026-12796: A vulnerability was identified in BerriAI litellm up to 1.82.2. https://nvd.nist.gov/vuln/detail/CVE-2026-12796

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.