CVE-2026-18090— Gdk-pixbuf: gdk-pixbuf: heap out-of-bounds read in uncompress() via crafted icns rle block
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.
gdk-pixbuf 中存在一个缺陷。该漏洞允许远程攻击者通过提供一个精心构造的 Apple 图标图像（.icns）文件，导致堆栈越界读取（heap out-of-bounds read）。负责处理 RLE 编码 ICNS 图标数据的 uncompress() 函数在解压过程中未对源缓冲区边界进行有效验证。此问题可能导致拒绝服务（DoS），表现为应用程序崩溃；也可能导致信息泄露，可能会从相邻内存中暴露敏感数据。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-18090
Vulnerability Information
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Vulnerability Title
Gdk-pixbuf: gdk-pixbuf: heap out-of-bounds read in uncompress() via crafted icns rle block
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to cause a heap out-of-bounds read by providing a specially crafted Apple Icon Image (.icns) file. The uncompress() function, which handles RLE-encoded ICNS icon data, fails to validate the source buffer's boundaries during decompression. This can lead to a denial of service, where the application crashes, or to information disclosure, potentially revealing sensitive data from adjacent memory.
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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
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| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
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| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
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| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
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| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
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| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
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| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
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| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
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II. Public POCs for CVE-2026-18090
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-18090 (1)
Other References for CVE-2026-18090 (1)
Other References for CVE-2026-18090 (1)
Same Patch Batch · Red Hat · 2026-09-08 · 8 CVEs total
| CVE-2026-78234 | 9.9 CRITICAL | Hawtio-operator: hawtio-operator: service-ca signing oracle allows arbitrary-cn certificat |
| CVE-2026-80219 | 8.7 HIGH | Hawtio-operator: hawtio-operator: oauthclient created with grantmethod auto and no secret |
| CVE-2026-74860 | 8.5 HIGH | Libxml2: double-free/uaf in libxml2 python bindings |
| CVE-2026-77968 | 8.2 HIGH | Hawtio-operator: hawtio-operator: cluster-wide secrets read/write granted to operator serv |
| CVE-2026-76561 | 7.2 HIGH | Pki-core: dogtag/pki: certprofile-import allows code execution via unsanitized profile con |
| CVE-2026-74859 | 6.8 MEDIUM | Gnome-tweaks: path traversal in theme installer |
| CVE-2026-86564 | 3.3 LOW | Dpdk: dpdk: missing length validation before reading command_data in virtio-net control qu |
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Hawtio-operator: hawtio-operator: cluster-wide secrets read/ -
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Libxml2: double-free/uaf in libxml2 python bindings
V. Comments for CVE-2026-18090
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