GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PSD files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28807.
https://www.zerodayinitiative.com/advisories/ZDI-26-217/
https://gitlab.gnome.org/GNOME/gimp/-/commit/00afdabdadeb5457fd897878b1e5aebc3780af10
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4150.json
https://bugzilla.redhat.com/show_bug.cgi?id=2457535
https://access.redhat.com/security/cve/CVE-2026-4150
https://access.redhat.com/errata/RHSA-2026:26168
https://access.redhat.com/errata/RHSA-2026:25907
https://access.redhat.com/errata/RHSA-2026:25901
https://access.redhat.com/errata/RHSA-2026:25899
https://access.redhat.com/errata/RHSA-2026:20691
https://access.redhat.com/errata/RHSA-2026:20554
https://access.redhat.com/errata/RHSA-2026:20553
https://access.redhat.com/errata/RHSA-2026:20552
https://access.redhat.com/errata/RHSA-2026:19362