CVE-2026-50262
5.5 MEDIUMAn out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes()
Published: 2026-06-05 · Last updated: 2026-06-05
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CWE
- CWE-125
Description
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-50262
- [Other]https://access.redhat.com/security/cve/CVE-2026-50262
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=2485387
- [Other]https://gitlab.freedesktop.org/xorg/xserver/-/commit/6d459e4daf715bea8abdafa8fb130be2f8a1d145
- [Other]https://lists.x.org/archives/xorg-announce/2026-June/003702.html
- [Other]https://redhat.atlassian.net/browse/PSIRTSUPT-16950
Related CVEs
Same CWE
- CVE-2026-12033 — Out of bounds read in VideoCapture in Google Chrome prior to 149.0.7827.115 allowed a remote attacker who had compromised the GPU process... (5.3 MEDIUM)
- CVE-2026-12026 — Out of bounds read in Video in Google Chrome on ChromeOS prior to 149.0.7827.115 allowed a remote attacker who had compromised the render...
- CVE-2026-52859 — Vim is an open source, command line text editor
- CVE-2026-47166 — ImageMagick is free and open-source software used for editing and manipulating digital images (5.7 MEDIUM)
- CVE-2026-45624 — ImageMagick is free and open-source software used for editing and manipulating digital images (5.1 MEDIUM)