CVE-2026-12798

MEDIUM 6.3

BerriAI litellm MCP OpenAPI Spec Loader openapi_to_mcp_generator.py load_openapi_spec_async server-side request forgery

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function load_openapi_spec_async of the file litellm/proxy/_experimental/mcp_server/openapi_to_mcp_generator.py of the component MCP OpenAPI Spec Loader. This manipulation of the argument spec_path causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

CWE	CWE-918
Vendor	berriai
Product	litellm
Published	Jun 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

BerriAI / litellm

1.82.0 1.82.1 1.82.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/372560 vuldb.com: https://vuldb.com/vuln/372560/cti vuldb.com: https://vuldb.com/cve/CVE-2026-12798 vuldb.com: https://vuldb.com/submit/811290 gist.github.com: https://gist.github.com/YLChen-007/c1104c529975699ba347feedfbe02c5a

Credits

🔍 Eric-c (VulDB User) VulDB CNA Team