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CVE-2026-53549

7.7 · HIGH

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities.

Published Aug 19, 2026CWE-918EPSS 0.45%

Overview

CVE-2026-53549 is a high-severity vulnerability. It was published on August 19, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.3.2, the POST /host/db/proxy/test endpoint accepts the singleProxy, proxyChain, and testTarget request fields without validating their destination addresses. The testProxyConnectivity path uses raw TCP and SOCKS connections to attacker-selected hosts and ports, allowing an authenticated user to probe localhost, private networks, link-local metadata services, and other infrastructure reachable from the Termix server. Structured connection errors disclose host reachability and timing information, and successful metadata access can expose cloud credentials. This issue is fixed in version 2.3.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132bGitHubgithub.com/Termix-SSH/Termix/pull/874GitHubgithub.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tagGitHubgithub.com/Termix-SSH/Termix/security/advisories/GHSA-x9pr-795g-rm5fGitHubgithub.com/Termix-SSH/Termix/security/advisories/GHSA-x9pr-795g-rm5f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53549?

CVE-2026-53549 is a high-severity vulnerability. It was published on August 19, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-53549?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53549?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53549?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53549 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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