High [CVE-2026-30623] Remote code execution via unvalidated MCP server configuration
This high-severity Red Hat Linux advisory covers CVE-2026-30623.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
LiteLLM 1.18.10 contains a remote code execution vulnerability in its MCP server creation functionality. The application allows users to add MCP servers via a JSON configuration specifying arbitrary command and args values.
LiteLLM executes these values on the host without validation, enabling attackers to run arbitrary operating system commands. Successful exploitation may result in remote code execution with the privileges of the LiteLLM process.
A flaw was found in LiteLLM. This is possible because the application's MCP server creation functionality processes JSON configurations that can include unvalidated command and argument values.
Successful exploitation could lead to a complete compromise of the affected system. Per the upstream advisory, exploitation requires authentication -- it is not reachable by a fully unauthenticated attacker -- but no further privilege beyond a working API key is needed to reach the vulnerable code path.
Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-78.
Red Hat lists Exploit Intelligence; Lightspeed Core; Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI) as not affected.
Is CVE-2026-30623 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-30623 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-30623?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · medium-confidence parse· fetched 6 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 6 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 6 days ago·verify at source
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