JLSEC-2026-869

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-869.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-869.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-869
Upstream
Published
2026-07-30T16:02:27.435Z
Modified
2026-07-30T18:23:47.808428103Z
Severity
Summary
[none]
Details

In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was demonstrated in this case. This flaw affects ImageMagick versions prior to 7.0.9-0.

Database specific 
{
    "sources": [
        {
            "modified": "2026-06-17T03:09:36.790Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-27771",
            "published": "2020-12-04T15:15:10.787Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27771",
            "id": "CVE-2020-27771",
            "database_specific": {
                "status": "Modified"
            },
            "imported": "2026-07-30T14:08:41.889Z"
        }
    ],
    "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
6.9.12+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-869.json"