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CVE-2026-18309— GIMP APNG File Parsing Integer Overflow Remote Code Execution Vulnerability

Quick assessment

Affected
GIMP GIMP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GIMP是GIMP组织开源的一款专业图像编辑软件。 GIMP 3.2.2版本存在数字错误漏洞，该漏洞源于解析APNG文件时对用户提供的数据验证不当，导致分配缓冲区前发生整数溢出，攻击者可利用该漏洞在当前进程环境中执行任意代码。

AI Predicted 8.8 Difficulty: Hard EPSS 0.47% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
GIMP GIMP 3.2.2 affected
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I. Basic Information for CVE-2026-18309

Vulnerability Information
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Vulnerability Title
GIMP APNG File Parsing Integer Overflow Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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 specific flaw exists within the parsing of APNG files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29401.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
GIMP 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GIMP是GIMP组织开源的一款专业图像编辑软件。 GIMP 3.2.2版本存在数字错误漏洞，该漏洞源于解析APNG文件时对用户提供的数据验证不当，导致分配缓冲区前发生整数溢出，攻击者可利用该漏洞在当前进程环境中执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GIMP GIMP 3.2.2 -

II. Public POCs for CVE-2026-18309

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III. Intelligence Information for CVE-2026-18309

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Patches & Fixes for CVE-2026-18309 (1)

Vendor Advisories for CVE-2026-18309 (1)

Same Patch Batch · GIMP · 2026-08-20 · 10 CVEs total

CVE-2026-18305 GIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability
CVE-2026-18303 GIMP TIF File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-18301 GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability
CVE-2026-18304 GIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability
CVE-2026-18307 GIMP TIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-18300 GIMP HDR File Parsing Integer Overflow Remote Code Execution Vulnerability
CVE-2026-18302 GIMP TIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-18308 GIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability
CVE-2026-18306 GIMP SGI File Parsing Integer Overflow Remote Code Execution Vulnerability

IV. Related Vulnerabilities

Same product: GIMP
Same vendor: GIMP
Same weakness: CWE-190

V. Comments for CVE-2026-18309

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