CVE-2026-121604
Low · 3.3CVSS
3.3
EPSS
0.1%
Published
Nov 3, 2026
CISA due date
—
The record
wlroots before 0.20.2 contains an out-of-bounds read vulnerability in read_surface_class() in xwayland/xwm.c that allows local X11 clients to leak compositor heap memory. Attackers can set a WM_CLASS property with a NUL-terminated instance but unterminated class, exposing over-read heap bytes as the window class or app_id over IPC.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
- CVE-2026-118237 An out-of-bounds read vulnerability was identified in GitHub Enterprise Server in the Git… CWE-125
- CVE-2026-121208 Out of bounds read in Media in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-125
- CVE-2026-121197 Out of bounds read in ANGLE in Google Chrome on on Mac prior to 157.0.8103.38 allowed a… CWE-125
- CVE-2026-121184 Out of bounds read in Media in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-125
- CVE-2026-121160 Out of bounds read in Skia in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-125
- CVE-2026-121140 Out of bounds read in Internals in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-125
- CVE-2026-121112 Out of bounds read in Permissions in Google Chrome prior to 157.0.8103.38 allowed a… CWE-125
- CVE-2026-121093 Out of bounds read in Animation in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-125