CVE-2026-18090
6.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Summary
A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to cause a heap out-of-bounds read by providing a specially crafted Apple Icon Image (.icns) file. The uncompress() function, which handles RLE-encoded ICNS icon data, fails to validate the source buffer's boundaries during decompression. This can lead to a denial of service, where the application crashes, or to information disclosure, potentially revealing sensitive data from adjacent memory.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-125: Out-of-bounds Read
Workarounds
Do not open untrusted ICNS files from unknown sources. Disable ICNS image format support if not required.
References
- https://access.redhat.com/security/cve/CVE-2026-18090
- https://bugzilla.redhat.com/show_bug.cgi?id=2517751
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/308
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