Vulnerability · Published May 8, 2026 · Assigned by GitHub_M

CVE-2026-42453Termix: Command injection in extractArchive/compressFiles via double-quote escaping bypass

High 8.7

In plain English

A high-severity command injection in Termix from Termix-SSH. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)1.2%top 31.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to version 2.1.0, the extractArchive and compressFiles endpoints in file-manager.ts use double-quoted strings for shell command construction, unlike all other file manager operations which use single-quote escaping. Double quotes allow $(command) substitution, enabling command injection on the remote SSH host. This issue has been patched in version 2.1.0.

Affected products (as reported)

Vendor	Product	Versions
Termix-SSH	Termix	< 2.1.0

Weakness: CWE-77 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/Termix-SSH/Termix/security/advisories/GHSA-rvg4-7vvq-9c2w x_refsource_CONFIRM
https://github.com/Termix-SSH/Termix/releases/tag/release-2.1.0-tag x_refsource_MISC