BerriAI litellm up to 1.83.10 OIDC File /health/test_connection oidc permission

Summaryinfo

A vulnerability classified as problematic has been found in BerriAI litellm. The impacted element is an unknown function of the file /health/test_connection of the component OIDC File Handler. Performing a manipulation of the argument oidc results in permission. This vulnerability is reported as CVE-2026-59819. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in BerriAI litellm. This affects some unknown processing of the file /health/test_connection of the component OIDC File Handler. The manipulation of the argument oidc with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality. The summary by CVE is:

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.10-stable, LiteLLM's /health/test_connection endpoint resolved request-supplied environment and OIDC file references in litellm_params, allowing a proxy administrator or another privileged caller with permission to test model connections to read files from the local filesystem via an oidc/file/ reference. This issue is fixed in version 1.83.10-stable.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-59819 since 07/07/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 1.83.10-stable eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• BerriAI

Name

• litellm

Version

• 1.44.9
• 1.44.12
• 1.53.1
• 1.61.15-nightly
• 1.63.14
• 1.65.4
• 1.82.0-stable
• 1.83.0
• 1.83.7
• 1.83.7-stable
• 1.83.10

Website

• Product: https://github.com/BerriAI/litellm/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion