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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 APNG 文件解析整数溢出远程代码执行漏洞。此漏洞允许远程攻击者在受影响的 GIMP 安装环境中执行任意代码。利用该漏洞需要用户交互，即目标用户必须访问恶意网页或打开恶意文件。 该特定缺陷存在于 APNG 文件的解析过程中。问题源于对用户提供的数据缺乏适当的验证，这可能导致在分配缓冲区之前发生整数溢出。攻击者可利用此漏洞以当前进程的身份执行代码。该漏洞此前曾由零日倡议（ZDI）编号为 ZDI-CAN-29401 报告。

AI Predicted 8.8 Difficulty: Hard EPSS 0.34% · P26

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

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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