# CVE-2026-86137

## Summary

- **CVE ID:** CVE-2026-86137
- **Severity:** LOW
- **CVSS Score:** 2.9 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-125
- **Published:** Sep 5, 2026
- **Last Modified:** Sep 14, 2026

## Description

In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.

## Affected Products

- xmlsoft — libxml2 (0)

## References

- [CNA](https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4)
- [CNA](https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2)
- [CNA](https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1099)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 3.0

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._