CVE-2026-93516EUVD-2026-112075
.Org Server XInput Passive Grab Use-After-Free
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 21.1.25, 24.1.14
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The X.org X Server (before its 21.1.25 release) and XWayland (before 24.1.14) contain a use-after-free flaw in how they handle XInput master devices being added or removed. An authenticated X client could exploit this to crash the X server or potentially run arbitrary code within the X server's context.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices 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 in X server context.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- xorg-x11-server
fixed in 21.1.25
- xwayland
fixed in 24.1.14