What’s Vulnerable › Vulnerabilities
CVE-2026-93536: X.Org Server GestureBuildSprite Use-After-Free
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-28 · updated 2026-10-29
- Weakness: CWE-122
Description
A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code.
Affected products
- X.org xorg-x11-server: before 21.1.25 — fixed in 21.1.25
- X.Org xwayland: before 24.1.14 — fixed in 24.1.14
How to fix
Upgrade to a fixed version: X.org xorg-x11-server 21.1.25; X.Org xwayland 24.1.14. Check the vendor advisory for mitigations.
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References
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