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HIGH severity

CVE-2026-110667 — Cemtan

HIGH

CVE-2026-110667 is a high-severity (CVSS 7.3) CWE-259 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

A security flaw has been discovered in cemtan sar2html 4.0.0. Affected by this vulnerability is an unknown functionality of the file sar2html.py. The manipulation of the argument SECRET_KEY…

Published
Updated
Affected
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Patched
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Exploits
None indexed
Exploitation data as of Oct 14, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-110667.

Description

A security flaw has been discovered in cemtan sar2html 4.0.0. Affected by this vulnerability is an unknown functionality of the file sar2html.py. The manipulation of the argument SECRET_KEY results in hard-coded credentials. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-110667 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

A security flaw has been discovered in cemtan sar2html 4.0.0. Affected by this vulnerability is an unknown functionality of the file sar2html.py. The manipulation of the argument SECRET_KEY results in hard-coded credentials. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.
O3 Security · Impact-Aware SCA

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CVE-2026-110667: Cemtan (High 7.3)