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CVE-2026-78475— Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader

Quick assessment

Affected
GNOME 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.

GNOME GIMP是GNOME基金会的一款图像编辑软件。 GNOME GIMP存在缓冲区错误漏洞，该漏洞源于file-pix(ESM)插件在处理特制的PIX图像文件时，在栈上分配变长数组（VLA）且未进行正确的边界检查，导致无界栈分配和21字节栈越界读取，可能导致拒绝服务和有限的信息泄露。

CVSS 6.1 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 5

VendorProduct Version RangeStatus
GNOME GIMP 3.0.0< * affected
Red Hat Red Hat Enterprise Linux 6 any unaffected
Red Hat Red Hat Enterprise Linux 7 any unaffected
Red Hat Red Hat Enterprise Linux 8 any unaffected
Red Hat Red Hat Enterprise Linux 9 any affected
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I. Basic Information for CVE-2026-78475

Vulnerability Information
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Vulnerability Title
Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the file-pix (ESM) plugin in GIMP. When processing a specially crafted PIX image file, the plugin allocates a Variable-Length Array (VLA) on the stack without proper bounds checking, causing an unbounded stack allocation followed by a 21-byte stack over-read. This can result in a denial of service due to stack exhaustion and a limited information disclosure of stack memory contents into an intermediate file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
GNOME GIMP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNOME GIMP是GNOME基金会的一款图像编辑软件。 GNOME GIMP存在缓冲区错误漏洞，该漏洞源于file-pix(ESM)插件在处理特制的PIX图像文件时，在栈上分配变长数组（VLA）且未进行正确的边界检查，导致无界栈分配和21字节栈越界读取，可能导致拒绝服务和有限的信息泄露。
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
GNOME GIMP 3.0.0 ~ * -
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-78475

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III. Intelligence Information for CVE-2026-78475

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Patches & Fixes for CVE-2026-78475 (1)

Vendor Advisories for CVE-2026-78475 (1)

IV. Related Vulnerabilities

Same product: GIMP
Same vendor: GNOME
Same weakness: CWE-125

V. Comments for CVE-2026-78475

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