CVE search · CVE-2026-50263
CVE-2026-50263
medium 5.5
A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
Details
- Status
- Modified
- Published
- Last changed
- Source
- secalert@redhat.com
- Weakness
- CWE-416
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | medium 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
secalert@redhat.comSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
References
- https://access.redhat.com/errata/RHSA-2026:26562
- https://access.redhat.com/errata/RHSA-2026:26566
- https://access.redhat.com/errata/RHSA-2026:26590
- https://access.redhat.com/errata/RHSA-2026:26610
- https://access.redhat.com/errata/RHSA-2026:26709
- https://access.redhat.com/errata/RHSA-2026:28923
- https://access.redhat.com/errata/RHSA-2026:29844
- https://access.redhat.com/errata/RHSA-2026:36083
- https://access.redhat.com/errata/RHSA-2026:36085
- https://access.redhat.com/errata/RHSA-2026:36086
- https://access.redhat.com/errata/RHSA-2026:36087
- https://access.redhat.com/errata/RHSA-2026:36632
- https://access.redhat.com/errata/RHSA-2026:36633
- https://access.redhat.com/errata/RHSA-2026:36634
- https://access.redhat.com/errata/RHSA-2026:36768
- https://access.redhat.com/errata/RHSA-2026:36791
- https://access.redhat.com/errata/RHSA-2026:36792
- https://access.redhat.com/errata/RHSA-2026:36798
- https://access.redhat.com/errata/RHSA-2026:38502
- https://access.redhat.com/errata/RHSA-2026:38810
- https://access.redhat.com/errata/RHSA-2026:46377
- https://access.redhat.com/errata/RHSA-2026:46382
- https://access.redhat.com/errata/RHSA-2026:46385
- https://access.redhat.com/errata/RHSA-2026:46392
- https://access.redhat.com/errata/RHSA-2026:46456
- https://access.redhat.com/errata/RHSA-2026:46460
- https://access.redhat.com/errata/RHSA-2026:46473
- https://access.redhat.com/errata/RHSA-2026:49519
- https://access.redhat.com/security/cve/CVE-2026-50263Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2485388Issue TrackingThird Party Advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/ecc634f1b2f7aa473d3a267eada98c4918bf9e05Patch
- https://lists.x.org/archives/xorg-announce/2026-June/003702.htmlMailing ListVendor Advisory
- https://redhat.atlassian.net/browse/PSIRTSUPT-16950Permissions Required