What is CVE-2026-30623?

CVE-2026-30623 is a critical-severity vulnerability in N/a, classified under Command Injection. CVSS score: 9.8/10. Published 2026-07-15.

How severe is CVE-2026-30623?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2026-30623 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in N/a

CVE-2026-30623

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.050 (91.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

csinexus/mcpshield

References

Frequently asked questions

What is CVE-2026-30623?: CVE-2026-30623 is a critical-severity vulnerability in N/a, classified under Command Injection. CVSS score: 9.8/10. Published 2026-07-15.
How severe is CVE-2026-30623?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-30623 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.