BerriAI litellm up to 1.82.2 SSO Authentication Flow ui_sso.py get_redirect_response_from_openid session expiration

Summaryinfo

A vulnerability was found in BerriAI litellm up to 1.82.2 and classified as critical. Affected is 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 results in session expiration. This vulnerability was named CVE-2026-12796. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability, which was classified as critical, was found in BerriAI litellm up to 1.82.2. Affected is 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 with an unknown input leads to a session expiration vulnerability. CWE is classifying the issue as CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at gist.github.com. This vulnerability is traded as CVE-2026-12796. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• BerriAI

Name

• litellm

Version

• 1.82.0
• 1.82.1
• 1.82.2

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Threat Intelligenceinfo

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Entryinfo

Submitinfo

Accepted

• Submit #811287: litellm <= 1.82.2 Insufficient Session Expiration (CWE-613) (by Eric-c)

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