CVE-2026-12796: BerriAI litellm: SSO Login Does Not Invalidate Previous UI Session Tokens

June 21, 2026 (updated September 14, 2026)

A vulnerability was identified in BerriAI litellm up to 1.82.2. This impacts the function get_redirect_response_from_openid of the file litellm/proxy/management_endpoints/ui_sso.py of the component SSO Authentication Flow. The manipulation leads to session expiration. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.

References

gist.github.com/YLChen-007/5fa8af12e1b183674d7ca96d852fb697
github.com/advisories/GHSA-w2mh-qq9q-453x
nvd.nist.gov/vuln/detail/CVE-2026-12796
vuldb.com/cve/CVE-2026-12796
vuldb.com/submit/811287
vuldb.com/vuln/372558
vuldb.com/vuln/372558/cti

Code Behaviors & Features

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