ZDI-26-462: GIMP APNG 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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18309.
AI Analysis
Technical Summary
CVE-2026-18309 is an integer overflow vulnerability in GIMP's APNG file parsing functionality. The flaw arises from improper validation of user-supplied data, leading to an integer overflow before buffer allocation. This can be exploited by remote attackers to execute arbitrary code with the privileges of the GIMP process. Exploitation requires user interaction. The Zero Day Initiative assigned a CVSS score of 7.8 (high severity) and published a coordinated advisory. GIMP has released a patch to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected GIMP installations, potentially leading to full compromise of the application context. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). User interaction is required for exploitation.
Mitigation Recommendations
GIMP has issued an official update that corrects this vulnerability. Users and administrators should apply the update promptly to mitigate the risk. No additional mitigation steps are indicated or required beyond applying the official patch.
ZDI-26-462: GIMP APNG File Parsing Integer 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-2026-18309.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18309 is an integer overflow vulnerability in GIMP's APNG file parsing functionality. The flaw arises from improper validation of user-supplied data, leading to an integer overflow before buffer allocation. This can be exploited by remote attackers to execute arbitrary code with the privileges of the GIMP process. Exploitation requires user interaction. The Zero Day Initiative assigned a CVSS score of 7.8 (high severity) and published a coordinated advisory. GIMP has released a patch to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected GIMP installations, potentially leading to full compromise of the application context. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). User interaction is required for exploitation.
Mitigation Recommendations
GIMP has issued an official update that corrects this vulnerability. Users and administrators should apply the update promptly to mitigate the risk. No additional mitigation steps are indicated or required beyond applying the official patch.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-462/","fetched":true,"fetchedAt":"2026-07-30T15:56:40.753Z","wordCount":206}
- Exploit Sophistication
- 7
- Weaponization Potential
- 6
- Stealth Capability
- 5
- Ai Analysis Type
- exploit-specialized
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a6b74c69c2644c7f84cc4ad
Added to database: 07/30/2026, 15:59:02 UTC
Last enriched: 08/15/2026, 05:17:54 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 81
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