CVE-2026-42169 (GCVE-0-2026-42169)

Vulnerability from cvelistv5 – Published: 2026-08-04 03:15 – Updated: 2026-10-12 02:14
VLAI
Title
Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)
Summary
A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:20 UTC
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1032 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:50817 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73768 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:80509 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-42169 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2461725 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 9 Unaffected: 2:3.0.4-4.el9_8.9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 2:2.99.8-4.el9_4.19 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 2:2.99.8-4.el9_6.20 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Date Public
2026-08-04 00:20
Show details on NVD website

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              "lang": "en",
              "value": "Red Hat would like to thank Rakan Alotaibi (@hxteam) for reporting this issue."
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          ],
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              "value": "A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution."
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          "title": "Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)",
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              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
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        "datePublished": "2026-08-04T03:15:25.271Z",
        "dateReserved": "2026-04-24T20:54:37.044Z",
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  }
}



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