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Medium 5.5Published Jun 5, 2026
CVE-2026-50262Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.
- CVSS
- 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:24.1.9-4.el10_2.2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:24.1.5-6.el10_0.1 not affected | CNA record |
from 0:1.1.0-25.el6_10.18 not affected | CNA record | |
from 0:1.20.10-5.el8_4 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:1.20.10-5.el8_4 not affected | CNA record |
from 0:1.20.11-19.el8_8 not affected | CNA record | |
from 0:1.20.11-19.el8_8 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:1.20.11-34.el9_6 not affected | CNA record |
x.org x_server x.org:x_server | before 21.1.23 | NVD |
x.org xwayland x.org:xwayland | before 24.1.12 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 7.0; 8.0; 9.0; 10.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:26562vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:26566vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:26590vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:26610vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:26709vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:28923vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:29844vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36083vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36085vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36086vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36087vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36632vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36633vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36634vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36768vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36791vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36792vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36798vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:38502vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:38810vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:46377vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:46382vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:46385vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:46392vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:46456vendor-advisory, x-refsource-redhat
The CVE record on cve.org NVD's entry
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