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CVE-2026-93522 is a heap buffer overflow in Xwayland's GPU-accelerated Glamor CopyArea CPU-to-framebuffer-object path. The temporary buffer, tmp_bits, is allocated using the destination height but indexed using source coordinates. When the source region is taller than the destination, writes exceed the allocated buffer and corrupt heap memory. The flaw affects Xwayland and is fixed in version 24.1.14. CVE-specific affected-component information identifies Xwayland only, although some bundled distribution advisories also associate the CVE with xorg-server updates.
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12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting Fedora 44's xorg-x11-server-Xwayland package, addressed by advisory FEDORA-2026-2448dda850. The content does not describe its technical cause or individual impact.
A heap buffer overflow in Xwayland's glamor/GPU-accelerated CopyArea path can allow an authenticated X client to cause arbitrary code execution or denial of service. Triggering it requires a source region taller than the destination and drawables with mismatched depths (24-bit and 32-bit). The advisory rates it Important, with CVSS 3.1 score 7.8. It does not affect xorg-server-21.1.x. The upstream fix is available in xwayland-24.1.14, while Amazon Linux 2023 and Amazon Linux 2027 Preview packages are listed as Pending Fix.
A graphics-related vulnerability in Xwayland, fixed in version 24.1.14 as part of a 12-vulnerability update. The article describes authenticated X-client access as a prerequisite for triggering the disclosed flaws, but does not specify this vulnerability's precise impact. X.Org Server 21.1.x is not listed as affected by this particular issue.
A vulnerability affecting Alpine Linux xorg-server and related packages. The reference does not describe its technical mechanism or individual severity. Updating to version 21.1.25-r0 or later is the stated remediation.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.