CVE-2026-18307

High

Description

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 specific flaw exists within the parsing of TIF 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-29404.

SeverityHigh
CVSS7.8
Exploit probability—
ProductGimp
PublishedAug 20, 2026
First seenAug 20, 2026
Weakness typeCWE-122CWE-122

How to fix

Affected products

ProductAffected versionsFixed in
gimp gimp3.2.2—

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