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CVE-2026-106061— Gimp: gimp: heap buffer over-read in x cursor (xmc) thumbnail loader on crafted file

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
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 的 X 光标（XMC）缩略图加载器中发现了一个缺陷。当 GIMP 为构造的 XMC 文件生成缩略图时，它会基于用 32 位有符号整数运算计算出的宽度 × 高度大小来分配一个像素缓冲区。如果该乘积发生溢出，则实际分配的内存空间将小于图像的真实尺寸。随后，GEGL 缓冲区读取操作会使用未包装（未正确截断或处理）的尺寸，从而在堆上执行越界读取（CWE-125），而这发生在大小计算阶段的整数溢出之后（CWE-190）。该问题可能导致 GIMP 崩溃或损坏进程内存。

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-106061

Vulnerability Information
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Vulnerability Title
Gimp: gimp: heap buffer over-read in x cursor (xmc) thumbnail loader on crafted file
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GIMP’s X cursor (XMC) thumbnail loader. When GIMP generates a thumbnail for a crafted XMC file, it allocates a pixel buffer using a width * height size computed in 32-bit signed arithmetic. If that product overflows, the allocation is smaller than the true image extent. A subsequent GEGL buffer read uses the unwrapped dimensions and performs an out-of-bounds read on the heap (CWE-125), after integer overflow in the size calculation (CWE-190). This can crash GIMP or corrupt process memory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
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-2026-106061

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III. Intelligence Information for CVE-2026-106061

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Vendor Advisories for CVE-2026-106061 (2)

Same Patch Batch · Red Hat · 2026-10-07 · 6 CVEs total

CVE-2026-106471 8.1 HIGH Candlepin: candlepin: broken object-level authorization via verifyauthorizationfilter mult
CVE-2026-107121 6.5 MEDIUM Keycloak-services: keycloak-services: smtp starttls plaintext credential and message downg
CVE-2026-103869 6.5 MEDIUM Pulp-ansible: bearer tokens are reused across remotes in a worker
CVE-2026-103868 6.5 MEDIUM Pulp-container: registry credentials are reused across remotes in a worker
CVE-2026-103870 5.0 MEDIUM Pulp-rpm: distribution tree publish creates directories from .treeinfo ids

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-125

V. Comments for CVE-2026-106061

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