CVE-2026-45748: Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-45748 is a critical-severity flaw (CVSS 9.8) affecting termix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Termix is 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. Version 2.3.2 patches the

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-06-05
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: termix

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-05 18:17 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

termix termix UPGRADE

Affected: >= 2.1.0 and < 2.3.2

Fixed in: 2.3.2

Safe to downgrade to: a release before 2.1.0

1. Check installed version

apt-cache policy termix || rpm -q termix || termix --version

2. UPGRADE to 2.3.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade termix

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade termix

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.1.0 (Debian / Ubuntu)

apt-cache madison termix sudo apt install termix=<VERSION_BEFORE_2.1.0> sudo apt-mark hold termix

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list termix sudo dnf downgrade termix-<VERSION_BEFORE_2.1.0> sudo dnf versionlock add termix

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Fedora 46 · flare-im · FIXED · 0.22.7-1.fc46 · FEDORA-2026-cd5e8062a1 · source

sudo dnf upgrade --advisory=FEDORA-2026-cd5e8062a1

Fedora ELN · libdnf · FIXED · 0.76.0-2.eln159 · FEDORA-2026-dbd263e9d4 · source

sudo dnf upgrade --advisory=FEDORA-2026-dbd263e9d4

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/Termix-SSH/Termix/security/advisories/GHSA-xmjh-8cc2-qm49

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45748?

termix: upgrade to 2.3.2. Exact commands for each OS are on this page.

Is CVE-2026-45748 being exploited?

CVE-2026-45748 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45748 affect?

CVE-2026-45748 affects termix. Severity is critical (CVSS 9.8). Termix is 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-contro

How urgent is CVE-2026-45748?

Priority 67/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-45744 CRITICAL 9.9 UPGRADE Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities
CVE-2026-45746 CRITICAL 9.0 UPGRADE Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities
CVE-2026-45750 CRITICAL 9.0 UPGRADE Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities
CVE-2026-45749 HIGH 8.1 UPGRADE Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities
CVE-2026-45743 HIGH 8.1 UPGRADE Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities

References

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