JLSEC-2026-470

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-470.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-470.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-470

Upstream

CVE-2020-14363

EUVD-2020-6506

GHSA-qmwg-hw9q-xg39

Published

2026-05-07T17:12:07.051Z

Modified

2026-05-07T17:32:26.250319800Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows...

Details

An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "modified": "2024-11-21T05:03:05.743Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-14363",
            "id": "CVE-2020-14363",
            "published": "2020-09-11T18:15:13.380Z",
            "imported": "2026-05-07T16:20:05.627Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14363",
            "database_specific": {
                "status": "Modified"
            }
        },
        {
            "modified": "2023-01-29T05:04:04Z",
            "url": "https://api.github.com/advisories/GHSA-qmwg-hw9q-xg39",
            "id": "GHSA-qmwg-hw9q-xg39",
            "published": "2022-05-24T17:28:02Z",
            "imported": "2026-05-07T16:20:08.823Z",
            "html_url": "https://github.com/advisories/GHSA-qmwg-hw9q-xg39"
        },
        {
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2020-6506",
            "modified": "2024-08-04T12:46:34Z",
            "published": "2020-09-11T18:02:24Z",
            "id": "EUVD-2020-6506",
            "imported": "2026-05-07T16:20:07.364Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-6506"
        }
    ]
}

References

Affected packages

Julia / Xorg_libX11_jll

Package

Name: Xorg_libX11_jll
Purl: pkg:julia/Xorg_libX11_jll?uuid=4f6342f7-b3d2-589e-9d20-edeb45f2b2bc

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.8.6+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-470.json"