GIMP JP2 File Parsing Heap-based Buffer 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 JP2 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28863.
https://www.zerodayinitiative.com/advisories/ZDI-26-219/
https://gitlab.gnome.org/GNOME/gimp/-/commit/f64c9c23ba3c37dc7b875a9fb477c23953b4666e
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4152.json
https://bugzilla.redhat.com/show_bug.cgi?id=2457533
https://access.redhat.com/security/cve/CVE-2026-4152
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