CVE-2026-117560
ATXP Gemini CLI Extension through 1.0.0 OS Command Injection via MCP Tools
- State
- Published
- Severity
- 8.5 High
- Published
- Oct 27, 2026
- Updated
- Oct 28, 2026
- Reserved
- Oct 27, 2026
Description
ATXP Gemini CLI extension through 1.0.0 contains an OS command injection vulnerability in runAtxp() that allows attackers to execute shell commands through unsanitized MCP tool parameters. Attackers can plant instructions in email or SMS content to inject $() or backtick substitutions into parameters like message_id, subject, or query, running commands as the user.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
gemini-cli-extensionatxp |
|
References
- GitHub Issue #15issue-tracking
- https://github.com/atxp-dev/atxpproduct
- https://github.com/atxp-dev/atxp/blob/4e88b0282b51ae7c22ea1b6ca4476a39298299ff/src/server.ts#L28-L40technical-description
- VulnCheck Advisory: ATXP Gemini CLI Extension through 1.0.0 OS Command Injection via MCP Toolsthird-party-advisory
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