# CVE-2026-86142

## Summary

- **CVE ID:** CVE-2026-86142
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L)
- **CWE:** CWE-122
- **Published:** Sep 5, 2026
- **Last Modified:** Sep 5, 2026

## Description

In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.

## 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/6b3a736c0edc74ceec3d82f5252499d7911b3a58)
- [CNA](https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 3.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._