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CVE-2026-90947— Gimp: gimp: out-of-bounds write in lighting effects plugin via crafted preset file

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 6
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.

在 GIMP 中发现了一个缺陷：在处理一个经过特殊构造的灯光预设文件时，光照效果滤镜未能正确验证光源数量。这可能导致越界写入，从而破坏内存。攻击者可以通过诱骗用户打开一个恶意的预设文件来利用此漏洞，进而可能导致程序崩溃，甚至实现任意代码执行。

CVSS 7.8 · High

Possible ATT&CK Techniques 1 AI

T1204 · User Execution
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I. Basic Information for CVE-2026-90947

Vulnerability Information
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Vulnerability Title
Gimp: gimp: out-of-bounds write in lighting effects plugin via crafted preset file
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GIMP. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this by convincing a user to open a malicious preset file, potentially causing a crash or enabling arbitrary code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
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-2026-90947

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III. Intelligence Information for CVE-2026-90947

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Vendor Advisories for CVE-2026-90947 (1)

Other References for CVE-2026-90947 (1)

Other References for CVE-2026-90947 (1)

Same Patch Batch · Red Hat · 2026-09-14 · 7 CVEs total

CVE-2026-90949 7.8 HIGH Gimp: gimp: heap-based buffer overflow in psp loader due to selection-channel geometry mis
CVE-2026-90948 7.8 HIGH Gimp: gimp: heap-based buffer overflow in ico loader via integer overflow in embedded png
CVE-2026-90995 5.5 MEDIUM Sssd: sssd: local denial of service due to null pointer dereference in pam responder
CVE-2026-90996 4.0 MEDIUM Sssd: sssd: denial of service in nss responder via crafted zero-length requests
CVE-2026-90994 4.0 MEDIUM Sssd: sssd: denial of service via malformed pam v1 requests
CVE-2026-90463 4.0 MEDIUM Sssd: local oob read in nss service request parsers (`sss_nss_protocol_parse_svc_name` / `

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 6
Same vendor: Red Hat
Same weakness: CWE-787

V. Comments for CVE-2026-90947

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