Termix-SSH Termix up to 2.2.1 TLS Certificate Validation certificate validation

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Termix-SSH Termix up to 2.2.1. The affected element is an unknown function of the component TLS Certificate Validation Handler. The manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2026-45745. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Termix-SSH Termix up to 2.2.1. This issue affects an unknown functionality of the component TLS Certificate Validation Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE is:

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Starting in version 1.7.0, Termix Desktop (Electron) disables TLS certificate validation, allowing a machine-in-the-middle attacker to intercept and modify HTTPS traffic to the configured Termix server. This can lead to credential theft and JWT/session theft during login and normal use. As of time of publication, no known patched versions are available.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-45745 since 05/13/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/05/2026). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• SSH Server Software

Vendor

• Termix-SSH

Name

• Termix

Version

• 2.2.0
• 2.2.1

Website

• Product: https://github.com/Termix-SSH/Termix/

CPE 2.3info

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CPE 2.2info

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