CVE-2026-109904
X.Org Server XRes QueryClientIds Request Size Overflow
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.
| CWE | CWE-126 |
| Vendor | x.org |
| Product | xorg-x11-server |
| Published | Nov 13, 2026 |
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Affected Versions
X.Org / xorg-x11-server
0 < 21.1.26
X.Org / xwayland
0 < 24.1.15
References
Credits
Acts1631 <[email protected]>