# CVE-2026-111132: GNOME libgxps heap out-of-bounds read in path geometry parsing

Source: https://junglewise.ai/threats/cve-2026-111132-gnome-libgxps-through-0-3-2-contains-a-heap-out-of-bounds-read  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111132 · Severity: medium · CVSS 6.1 · Published 2026-10-15

GNOME libgxps is a library that processes XPS (XML Paper Specification) documents, commonly used by document viewers like Evince. A memory parsing flaw allows attackers to craft malicious XPS files that cause the application to read and expose adjacent heap memory, potentially leaking sensitive data or causing a crash when the document is opened.

Vendors: [Gnome](https://junglewise.ai/threats/vendors/gnome).

## Quick answers

**Is CVE-2026-111132 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111132 being exploited in the wild.

**How severe is CVE-2026-111132?** Medium severity, with a CVSS score of 6.1, published 15 October 2026.

**Which products and versions are affected?** Gnome Libgxps through 0.3.2.

**Is there a fix for CVE-2026-111132?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111132 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-111132?** Check whether you run Gnome Libgxps 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.

## Technical details

A heap out-of-bounds read exists in the path_geometry_start_element() function when parsing PolyBezierSegment or PolyQuadraticBezierSegment elements with Point attributes. An attacker can craft an XPS document with a point count that violates the expected divisibility (not divisible by three or two respectively) to trigger out-of-bounds memory access. This allows reading adjacent heap memory or crashing the application, with no authentication or user interaction required beyond opening the file.

## Affected products

- GNOME libgxps through 0.3.2

## Timeline

- 2026-10-15: disclosed

## References

- [https://gitlab.gnome.org/](https://gitlab.gnome.org/)
- [https://gitlab.gnome.org/GNOME/libgxps](https://gitlab.gnome.org/GNOME/libgxps)