Authenticated internal resource access via unvalidated spec URL
Published Jun 21, 2026 · Updated Jun 21, 2026
SSRF in LiteLLM 1.82.0 through 1.82.2 allows remote authenticated users to access internal services via a crafted OpenAPI spec URL. The load_openapi_spec_async function passes the request-supplied spec_path directly to an HTTP client's GET method without destination validation. A valid API key and the default-enabled MCP REST API are required; returned responses expose internal content and distinguish reachable ports.
Summary
What happened
SSRF in LiteLLM 1.82.0 through 1.82.2 allows remote authenticated users to access internal services via a crafted OpenAPI spec URL. The load_openapi_spec_async function passes the request-supplied spec_path directly to an HTTP client's GET method without destination validation. A valid API key and the default-enabled MCP REST API are required; returned responses expose internal content and distinguish reachable ports.
The record
- CVE
- CVE-2026-12798
- Published
- Jun 21, 2026
- Updated
- Jun 21, 2026
- Vendor
- Berri AI
- Product
- LiteLLM
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 21, 2026CVE publishedPublication date reported by the CVE source.
- Jun 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.82.0
- Affected versionversion=1.82.1
- Affected versionversion=1.82.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SSRF via Unvalidated spec_path URL in MCP OpenAPI Spec Loaderproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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