JLSEC-2026-539

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-539.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-539.json

JSON Data

https://api.test.osv.dev/v1/vulns/JLSEC-2026-539

Upstream

CVE-2020-27842

Published

2026-05-26T19:31:24Z

Modified

2026-07-18T18:25:34Z

Severity

4.3 CVSS_V2 - AV:N/AC:M/Au:N/C:N/I:N/A:P CVSS Calculator
5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.

Database specific

{
    "license":  "CC-BY-4.0",
    "sources":  [
        {
            "database_specific":  {
                "status":  "Modified"
            },
            "html_url":  "https://nvd.nist.gov/vuln/detail/CVE-2020-27842",
            "id":  "CVE-2020-27842",
            "imported":  "2026-07-17T22:05:52.115Z",
            "modified":  "2026-06-17T03:09:43.370Z",
            "published":  "2021-01-05T18:15:14.020Z",
            "url":  "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-27842"
        }
    ]
}

References

Affected packages

Julia / OpenJpeg_jll

Package

Name: OpenJpeg_jll
Purl: pkg:julia/OpenJpeg_jll?uuid=643b3616-a352-519d-856d-80112ee9badc

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.4.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-539.json"