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CVE-2026-59090— Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow

Quick assessment

Affected
CVE-2026-59090
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组织开源的一款图像编辑软件。 GIMP存在数字错误漏洞，该漏洞源于PSD文件格式插件在处理特制的.psd图像文件时block_rem变量存在无符号整数下溢，导致解析器混乱，攻击者可将任意数据注入为图层资源块，最终导致任意代码执行。

CVSS 8.4 · High EPSS 0.60% · P47

Affected Version Matrix 6

VendorProduct Version RangeStatus
None None 3.3.1 affected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 2:3.0.4-4.el9_8.10< * unaffected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 2:2.99.8-4.el9_6.20< * unaffected

I. Basic Information for CVE-2026-59090

Vulnerability Information
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Vulnerability Title
Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(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组织开源的一款图像编辑软件。 GIMP存在数字错误漏洞，该漏洞源于PSD文件格式插件在处理特制的.psd图像文件时block_rem变量存在无符号整数下溢，导致解析器混乱，攻击者可将任意数据注入为图层资源块，最终导致任意代码执行。
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
- - 3.3.1 -
Red Hat Red Hat Enterprise Linux 9 2:3.0.4-4.el9_8.10 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 2:2.99.8-4.el9_6.20 ~ * cpe:/a:redhat:rhel_eus:9.6::appstream
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

II. Public POCs for CVE-2026-59090

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III. Intelligence Information for CVE-2026-59090

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Vendor Advisories for CVE-2026-59090 (4)

Other References for CVE-2026-59090 (1)

IV. Related Vulnerabilities

Same weakness: CWE-191

V. Comments for CVE-2026-59090

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