CVE-2026-12796: BerriAI litellm SSO Authentication Flow ui_sso.py get_redirect_response_from_openid session expiration

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-06-21 · updated 2026-10-25
Weakness: CWE-613

Description

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.

Affected products

BerriAI litellm: through 1.82.2

References

https://gist.github.com/YLChen-007/5fa8af12e1b183674d7ca96d852fb697
https://vuldb.com/cve/CVE-2026-12796
https://vuldb.com/submit/811287
https://vuldb.com/vuln/372558
https://vuldb.com/vuln/372558/cti

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