# 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.

Source: https://junglewise.ai/threats/cve-2026-2653-pysec-2026-5-a-security-flaw-has-been-discovered-in-admesh-up-to-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-18  
License: CC BY 4.0 with a link back

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)](https://junglewise.ai/threats/technologies/admesh). Vendors: [PyPI](https://junglewise.ai/threats/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

  ```sh
  pip install "admesh>=0.98.6"
  ```


## Affected products

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

## Identifiers

- CVE-2026-2653
- PYSEC-2026-5

## Related threats

- [ADMesh improper array index validation](https://junglewise.ai/threats/cve-2022-38072-admesh-improper-array-index-validation)
- [Out-of-bounds read in admesh](https://junglewise.ai/threats/cve-2018-25033-out-of-bounds-read-in-admesh)