ZDI-26-220: GIMP PSP 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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-4153.
AI Analysis
Technical Summary
CVE-2026-4153 is a heap-based buffer overflow vulnerability in GIMP affecting the parsing of PSP files. The flaw is due to insufficient validation of the length of user-supplied data before copying it into a heap buffer, which can lead to arbitrary code execution in the context of the current process. Exploitation requires user interaction, such as opening a crafted malicious file. The vulnerability has a CVSS score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). GIMP has released an official update to fix this vulnerability, as documented in their commit at https://gitlab.gnome.org/GNOME/gimp/-/commit/98cb1371fd4e22cca75017ea3252dc32fc218712.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with the privileges of the user running GIMP. This can lead to full compromise of the affected system. The vulnerability requires user interaction, such as opening a malicious PSP file, to trigger the overflow and execute code.
Mitigation Recommendations
An official fix is available from GIMP. Users should apply the update provided by GIMP to remediate this vulnerability. No additional mitigation steps are required if the update is applied.
ZDI-26-220: GIMP PSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
Description
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-4153.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-4153 is a heap-based buffer overflow vulnerability in GIMP affecting the parsing of PSP files. The flaw is due to insufficient validation of the length of user-supplied data before copying it into a heap buffer, which can lead to arbitrary code execution in the context of the current process. Exploitation requires user interaction, such as opening a crafted malicious file. The vulnerability has a CVSS score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). GIMP has released an official update to fix this vulnerability, as documented in their commit at https://gitlab.gnome.org/GNOME/gimp/-/commit/98cb1371fd4e22cca75017ea3252dc32fc218712.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with the privileges of the user running GIMP. This can lead to full compromise of the affected system. The vulnerability requires user interaction, such as opening a malicious PSP file, to trigger the overflow and execute code.
Mitigation Recommendations
An official fix is available from GIMP. Users should apply the update provided by GIMP to remediate this vulnerability. No additional mitigation steps are required if the update is applied.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-220/","fetched":true,"fetchedAt":"2026-05-26T20:00:17.458Z","wordCount":205}
Threat ID: 6a15fc93e29bf47b5055e29a
Added to database: 5/26/2026, 8:03:31 PM
Last enriched: 5/26/2026, 8:17:28 PM
Last updated: 5/27/2026, 5:04:08 AM
Views: 3
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