RCE in Atxp Gemini-Cli-Extension
CVE-2026-117560
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/atxp-dev/atxp/issues/15 (issue-tracking)
- github.com/atxp-dev/atxp (product)
- github.com/atxp-dev/atxp/blob/4e88b0282b51ae7c22ea1b6ca4476a39298299ff/src/serv… (technical-description)
- www.vulncheck.com/advisories/atxp-gemini-cli-extension-through-1.0.0-os-command… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-117560?
- CVE-2026-117560 is a high-severity vulnerability in Atxp Gemini-Cli-Extension, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-10-27.
- How severe is CVE-2026-117560?
- High severity. CVSS v3 base score is 7.8 out of 10.