JLSEC-2026-840

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-840.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-840.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-840
Upstream
Published
2026-07-30T16:02:27.435Z
Modified
2026-07-30T18:23:43.818980370Z
Severity
Summary
[none]
Details

A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called. This could occur if an attacker is able to submit a malicious image file to be processed by ImageMagick and could lead to denial of service. It likely would not lead to anything further because the memory is used as pixel data and not e.g. a function pointer. This flaw affects ImageMagick versions prior to 7.0.9-0.

Database specific 
{
    "sources": [
        {
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25663",
            "published": "2020-12-08T21:15:12.420Z",
            "id": "CVE-2020-25663",
            "modified": "2026-06-17T03:07:05.057Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-25663",
            "database_specific": {
                "status": "Modified"
            },
            "imported": "2026-07-30T14:08:42.128Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References

Affected packages

Julia / ImageMagick_jll

Package

Name
ImageMagick_jll
Purl
pkg:julia/ImageMagick_jll?uuid=c73af94c-d91f-53ed-93a7-00f77d67a9d7

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.1.0+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-840.json"