CVE-2026-18302

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-29398.

CVSS 3.0

7.8CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-25)

CWE

CWE-122

Published

2026-08-20

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• gimp:gimp

References

• https://gitlab.gnome.org/GNOME/gimp/-/commit/77e1a11636fae53c922fe92273b8f4e33c7a9176
• https://www.zerodayinitiative.com/advisories/ZDI-26-455/

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