https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 16:54:13 +0000 https://vulnerability.circl.lu/vuln/brew-aider-cve-2026-59823 <p><strong>Affected:</strong> Homebrew: aider</p> <p>### Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy&#39;s outbound request to a host of their choosing by smuggling an `api_base` inside the `user_config` request body, bypassing the existing parameter guard.</p> <p>### Details LiteLLM Proxy validates request bodies with `is_request_body_safe`, which blocks the `api_base` and `base_url` parameters but does not cover `user_config`. The `user_config` object is used to build the outbound router for a request, so a caller can place an `api_base` inside it and reach an arbitrary host. The guard only inspected the two top-level keys, so the same `api_base` nested inside `user_config` was never checked.</p> <p>Exploitation requires a valid virtual key.</p> <p>### Impact An authenticated caller can make the proxy issue server-side requests to internal or external hosts of their choosing, reaching endpoints the caller cannot otherwise access.</p> <p>### Affected / Patched Affected: `&lt;= 1.83.8` Patched: `1.83.9`</p> <p>### Remediation Upgrade to 1.83.9 or later (released 2026-04-17).</p> <p><strong>Affected:</strong> Homebrew: aider</p> <p>### Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy&#39;s outbound request to a host of their choosing by smuggling an `api_base` inside the `user_config` request body, bypassing the existing parameter guard.</p> <p>### Details LiteLLM Proxy validates request bodies with `is_request_body_safe`, which blocks the `api_base` and `base_url` parameters but does not cover `user_config`. The `user_config` object is used to build the outbound router for a request, so a caller can place an `api_base` inside it and reach an arbitrary host. The guard only inspected the two top-level keys, so the same `api_base` nested inside `user_config` was never checked.</p> <p>Exploitation requires a valid virtual key.</p> <p>### Impact An authenticated caller can make the proxy issue server-side requests to internal or external hosts of their choosing, reaching endpoints the caller cannot otherwise access.</p> <p>### Affected / Patched Affected: `&lt;= 1.83.8` Patched: `1.83.9`</p> <p>### Remediation Upgrade to 1.83.9 or later (released 2026-04-17).</p> https://vulnerability.circl.lu/vuln/brew-aider-cve-2026-59823 https://vulnerability.circl.lu/vuln/cve-2026-59823 <p><strong>Affected:</strong> BerriAI litellm</p> <p>LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.9, an authenticated LiteLLM Proxy caller with a valid virtual key can place api_base inside the user_config request body to bypass is_request_body_safe, which blocks top-level api_base and base_url but previously did not inspect or reject user_config. Because user_config constructs the outbound router, the nested destination redirects a server-side request to an internal or external host selected by the caller and can expose endpoints the caller cannot otherwise access. This issue is fixed in version 1.83.9.</p> <p><strong>Affected:</strong> BerriAI litellm</p> <p>LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.9, an authenticated LiteLLM Proxy caller with a valid virtual key can place api_base inside the user_config request body to bypass is_request_body_safe, which blocks top-level api_base and base_url but previously did not inspect or reject user_config. Because user_config constructs the outbound router, the nested destination redirects a server-side request to an internal or external host selected by the caller and can expose endpoints the caller cannot otherwise access. This issue is fixed in version 1.83.9.</p> https://vulnerability.circl.lu/vuln/cve-2026-59823