| Component | LiteLLM |
| Severity | medium (CVSS 6.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| Published (NVD) | 2026-06-21 |
| Last modified | 2026-06-24 |
| Affected versions | litellm <= 1.82.2 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-918 |
| CISA KEV | not listed |
NVD description
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.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep LiteLLM off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-12798
- https://gist.github.com/YLChen-007/c1104c529975699ba347feedfbe02c5a
- https://vuldb.com/submit/811290
- https://vuldb.com/cve/CVE-2026-12798
- https://vuldb.com/vuln/372560
- https://vuldb.com/vuln/372560/cti
Read more
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