Server-side Request Forgery (SSRF) Affecting litellm package, versions [,1.88.6)[1.89.0rc1,1.89.7)[1.90.0rc1,1.90.7)[1.91.0rc1,1.91.5)[1.92.0rc1,1.92.2)[1.93.0rc1,1.93.2)[1.94.0rc1,1.94.3)[1.95.0rc1,1.95.1)[1.96.0rc1,1.96.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Sept 2026
- disclosed2 Sept 2026
- creditUnknown
Introduced: 2 Sep 2026
NewCVE-2026-84377 (opens in a new tab)How to fix?
Upgrade litellm to version 1.88.6, 1.89.7, 1.90.7, 1.91.5, 1.92.2, 1.93.2, 1.94.3, 1.95.1, 1.96.2 or higher.
Overview
litellm is a Library to easily interface with LLM API providers
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) through request-body validation in the proxy auth path. An authenticated user can supply routing or credential parameters such as api_base, base_url, or other deployment-owned fields in the request body to redirect an outbound provider call to an attacker-controlled destination and make the proxy send its configured upstream credentials there. The vulnerable validation missed sensitive parameters and did not consistently inspect nested request fields, so caller-controlled body data could override server-side deployment settings instead of being rejected. From the user’s perspective, this can leak provider API keys and other configured secrets and can also be used to make the proxy reach internal services that are otherwise only accessible from its network.