CVE-2026-2653: PYSEC-2026-5 - A security flaw has been discovered in admesh up to 0.98.5. This issue affects the function stl_check_normal_vector of the file src/normals.

CVE-2026-2653 · Severity: low · CVSS 3.1 · Published 2026-02-18

A security flaw has been discovered in admesh up to 0.98.5. This issue affects the function stl_check_normal_vector of the file src/normals.c. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. It looks like this product is not really maintained anymore.

Technologies: admesh (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-2653 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-2653 being exploited in the wild.
How severe is CVE-2026-2653?
Low severity, with a CVSS score of 3.1, published 18 February 2026.
Which products and versions are affected?
admesh (PyPI) ECOSYSTEM:introduced=0,fixed=0.98.6.
Is there a fix for CVE-2026-2653?
Yes. admesh (PyPI): upgrade to 0.98.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-2653?
Check whether you run admesh (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • admesh (PyPI): upgrade to 0.98.6 or later
    pip install "admesh>=0.98.6"

Affected products

  • admesh (PyPI) ECOSYSTEM:introduced=0,fixed=0.98.6

Identifiers

  • CVE-2026-2653
  • PYSEC-2026-5

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.