Medium severity · published Jul 8, 2026
CVE-2026-59819
LiteLLM: Local file read via request-supplied OIDC file references
4.9
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
litellm · BerriAI
< 1.83.10-stable · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59819
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59819
Issue Tracking
https://github.com/BerriAI/litellm/pull/25592
Product
https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable
Mitigation
https://github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf
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