CVE-2026-16768

A flaw was found in gdk-pixbuf. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This vulnerability causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap content via the generated output, such as a thumbnail.

Score
CVSS 3.1 5.3 Medium
Status
Awaiting Analysis - secalert@redhat.com
Published
2026-07-23
Last modified
2026-07-31
Weaknesses
CWE-125

Affected products

References

 
 
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