CVE-2026-111132
GNOME libgxps through 0.3.2 Heap Out-of-Bounds Read via path_geometry_start_element
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 15, 2026
Description
GNOME libgxps through 0.3.2 contains a heap out-of-bounds read in path_geometry_start_element() that allows attackers to read past allocations via crafted PolyBezierSegment or PolyQuadraticBezierSegment Points attributes. Attackers can supply a point count not divisible by three or two in a crafted XPS document to crash consumers like Evince and render adjacent heap memory into output.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
libgxpsGNOME |
|
References
- https://hackmd.io/@haind-pwn/libgxps-poly-segment-points-arity-oob-readtechnical-description
- https://gitlab.gnome.org/GNOME/libgxps/-/blob/f5027ed09c767e8a02e652fbc77dcea79e19e10d/libgxps/gxps-path.c#L776-L785technical-description
- https://gitlab.gnome.org/GNOME/libgxps/-/blob/f5027ed09c767e8a02e652fbc77dcea79e19e10d/libgxps/gxps-path.c#L832-L848technical-description
- https://gitlab.gnome.org/GNOME/libgxpsproduct
- VulnCheck Advisory: GNOME libgxps through 0.3.2 Heap Out-of-Bounds Read via path_geometry_start_elementthird-party-advisory
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