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CVE-2026-53542— Termix: Tar option injection in file-manager archive creation allows command execution on managed SSH hosts

CVSS 8.8 · High EPSS 0.12% · P31
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I. Basic Information for CVE-2026-53542

Vulnerability Information
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Vulnerability Title
Termix: Tar option injection in file-manager archive creation allows command execution on managed SSH hosts
Source: CVE Program / CVE List V5
Vulnerability Description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.3.2, the archive creation endpoint in src/backend/ssh/file-manager.ts passes selected file basenames to tar without an end-of-options marker and without making the operands unambiguously relative. A user with access to an SSH file-manager session can select basenames beginning with GNU tar options such as --checkpoint=1 and --checkpoint-action=exec, causing tar, tar.gz, tar.bz2, or tar.xz creation to interpret those names as options. The resulting checkpoint action executes commands on the managed SSH host with the privileges of the connected SSH account, allowing file disclosure, modification, and service disruption. This issue is fixed in version 2.3.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
Termix-SSHTermix < 2.3.2 -

II. Public POCs for CVE-2026-53542

#POC DescriptionSource LinkShenlong Link
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Qwen3.6-35B-A3B · 6768 chars
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III. Intelligence Information for CVE-2026-53542

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Patches & Fixes for CVE-2026-53542 (1)

Vendor Advisories for CVE-2026-53542 (1)

Other References for CVE-2026-53542 (1)

Other References for CVE-2026-53542 (1)

Same Patch Batch · Termix-SSH · 2026-08-19 · 6 CVEs total

CVE-2026-535459.8 CRITICALTermix: Remote Code Execution via Tunnel Disconnect pkill Command Injection
CVE-2026-535489.6 CRITICALTermix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users
CVE-2026-535469.6 CRITICALTermix: Missing authorization in SSH host credential resolution exposes stored credentials
CVE-2026-535478.8 HIGHTermix: Account Takeover via Global Settings Disclosure
CVE-2026-535497.7 HIGHTermix: Server-Side Request Forgery via Proxy Connectivity Test

IV. Related Vulnerabilities

Same product: Termix
Same vendor: Termix-SSH
Same weakness: CWE-78

V. Comments for CVE-2026-53542

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