Vulnerability record · CVE-2026-12798 · published 21 June 2026

CVE-2026-12798: Litellm server-side request forgery (ssrf) vulnerability

Litellm · Litellm

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.

2.1 CVSS 4.0 Low EPSS 0.40% · top 67.9% CWE-918 · Server-side request forgery (SSRF)

2.1CVSS 4.0 base score, v2 6.5

0.40%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

5References, 2 tagged exploit

24 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Litellm Litellm

References

Link	Tags
https://gist.github.com/YLChen-007/c1104c529975699ba347feedfbe02c5a	ExploitThird Party Advisory
https://vuldb.com/cve/CVE-2026-12798	Third Party AdvisoryVDB Entry
https://vuldb.com/submit/811290	Third Party AdvisoryExploitVDB Entry
https://vuldb.com/vuln/372560	Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/372560/cti	Permissions RequiredVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-12798), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.