JLSEC-2026-472

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-472.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-472.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-472
Upstream
Published
2026-05-07T17:12:07.051Z
Modified
2026-05-07T17:15:24.681965Z
Summary
[none]
Details

A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption.

Database specific 
{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-3138",
            "database_specific": {
                "status": "Modified"
            },
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3138",
            "modified": "2024-11-21T08:16:32.423Z",
            "id": "CVE-2023-3138",
            "imported": "2026-05-07T16:20:05.798Z",
            "published": "2023-06-28T21:15:10.247Z"
        }
    ],
    "license": "CC-BY-4.0"
}
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-2026-472.json"