ZDI-26-455: GIMP TIF 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-2026-18302.
AI Analysis
Technical Summary
CVE-2026-18302 is a heap-based buffer overflow vulnerability in GIMP's TIF file parser caused by improper validation of the length of user-supplied data before copying it to a heap buffer. This flaw enables remote attackers to execute arbitrary code in the context of the current process if a user opens a crafted malicious TIF file. The vulnerability requires user interaction and has a CVSS score of 7.8. GIMP has released a patch to fix this issue.
Potential Impact
Successful exploitation can lead to remote code execution with the privileges of the user running GIMP, potentially allowing full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
GIMP has issued an official update that corrects this vulnerability. Users should apply the update promptly to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
ZDI-26-455: GIMP TIF 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-2026-18302.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18302 is a heap-based buffer overflow vulnerability in GIMP's TIF file parser caused by improper validation of the length of user-supplied data before copying it to a heap buffer. This flaw enables remote attackers to execute arbitrary code in the context of the current process if a user opens a crafted malicious TIF file. The vulnerability requires user interaction and has a CVSS score of 7.8. GIMP has released a patch to fix this issue.
Potential Impact
Successful exploitation can lead to remote code execution with the privileges of the user running GIMP, potentially allowing full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
GIMP has issued an official update that corrects this vulnerability. Users should apply the update promptly to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-455/","fetched":true,"fetchedAt":"2026-07-30T15:56:55.124Z","wordCount":207}
- Exploit Sophistication
- 6
- Weaponization Potential
- 5
- Stealth Capability
- 6
- Ai Analysis Type
- exploit-specialized
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a6b74c89c2644c7f84cc4cc
Added to database: 07/30/2026, 15:59:04 UTC
Last enriched: 08/15/2026, 05:18:38 UTC
Last updated: 09/14/2026, 22:01:32 UTC
Views: 129
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