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PatchSiren cyber security CVE debrief

CVE-2026-45748 Termix-SSH CVE debrief

CVE-2026-45748 is a critical OS command injection vulnerability in Termix, a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. The `POST /ssh/tunnel/connect` endpoint in Termix prior to version 2.3.2 builds an SSH tunnel command by interpolating user-controlled host record fields (`endpointIP`, `endpointUsername`, `password`) directly into a shell command without escaping, allowing persistent OS command injection on the source SSH host. This vulnerability has a CVSS score of 9.8 and is considered CRITICAL.

Vendor
Termix-SSH
Product
Termix
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-08
Advisory published
2026-06-05
Advisory updated
2026-06-08

Who should care

Users of Termix versions prior to 2.3.2 should apply the patch to prevent exploitation of this vulnerability.

Technical summary

The vulnerability exists in the `POST /ssh/tunnel/connect` endpoint of Termix. User-controlled input is directly interpolated into a shell command without proper escaping, allowing an attacker to inject OS commands.

Defensive priority

High

Recommended defensive actions

  • Upgrade to Termix version 2.3.2 or later.
  • Review and restrict access to the `POST /ssh/tunnel/connect` endpoint.
  • Implement additional security measures to monitor and detect potential exploitation attempts.

Evidence notes

The CVE record and NVD detail provide evidence of the vulnerability and its impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-45748 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-45748

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-45748 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-45748

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.