EUVD-2026-21633Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (zdi).
CVSS VectorVendor: zdi
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Heap-based buffer overflow in GIMP's JP2 image parser enables unauthenticated remote code execution when users open crafted JPEG 2000 files. The vulnerability stems from insufficient validation of user-supplied data length before copying to heap memory, allowing attackers to execute arbitrary code with user privileges. Exploitation requires social engineering to convince targets to open malicious JP2 files. No public exploit identified at time of analysis.
Technical ContextAI
CWE-122 heap overflow occurs during JP2 file parsing due to missing bounds checking on user-controlled length fields before heap buffer copy operations. The flaw resides in GIMP's JPEG 2000 codec implementation, where unconstrained memcpy-style operations write attacker-controlled data beyond allocated heap boundaries, enabling memory corruption and control-flow hijacking.
RemediationAI
Upstream fix available (PR/commit); released patched version not independently confirmed. GIMP development team published remediation commit f64c9c23ba3c37dc7b875a9fb477c23953b4666e addressing the heap overflow in JP2 parsing logic. Users should monitor official GIMP release channels for patched builds incorporating this commit. Until patched version deployment, avoid opening untrusted JP2 files from unknown sources. Disable automatic JP2 preview generation in file managers. Consider sandboxing GIMP processes using AppArmor, SELinux, or containerization to limit code execution impact. Advisory: https://gitlab.gnome.org/GNOME/gimp/-/commit/f64c9c23ba3c37dc7b875a9fb477c23953b4666e and https://www.zerodayinitiative.com/advisories/ZDI-26-219/
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View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| SUSE Liberty Linux 9 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP7 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 15 SP7 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 15 SP4 | Fixed |
| SUSE Linux Enterprise Server 15 SP5 | Fixed |
| SUSE Linux Enterprise Server 15 SP6 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP4 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP4 | Fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP5 | Fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP6 | Fixed |
| openSUSE Leap 15.4 | Fixed |
| openSUSE Leap 15.5 | Fixed |
| openSUSE Leap 15.6 | Fixed |
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