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Vulnerability record · CVE-2026-53549 · published 19 August 2026

CVE-2026-53549: Server-side request forgery (SSRF) vulnerability

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.

7.7 CVSS 3.1 High EPSS 0.45% · top 63.3% CWE-918 · Server-side request forgery (SSRF) Deferred
7.7CVSS 3.1 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
9 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

LinkTags
https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132b
https://github.com/Termix-SSH/Termix/pull/874
https://github.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag
https://github.com/Termix-SSH/Termix/security/advisories/GHSA-x9pr-795g-rm5f
https://github.com/Termix-SSH/Termix/security/advisories/GHSA-x9pr-795g-rm5f

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Source: NIST National Vulnerability Database (record CVE-2026-53549), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.