CVE-2026-59819

LiteLLM: Local file read via request-supplied OIDC file references

MEDIUM
4.9
CVSS Score
Published: July 8, 2026 at 07:33 PM UTC
Updated: October 25, 2026 at 05:10 PM UTC
2 products affected across 2 vendorsLiteLLMLiteLLM

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 1.83.10, so it looks safe — our inference, not a vendor statement
v < 1.83.10-stable
Affected range stops below 1.83.10-stable, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMMitigationPatchVendor Advisory
Source: cverecord
https://github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/BerriAI/litellm/pull/25592
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-73

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