JLSEC-2026-509

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-509.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-509.json

JSON Data

https://api.test.osv.dev/v1/vulns/JLSEC-2026-509

Upstream

CVE-2019-6284

Published

2026-05-18T14:23:04.937Z

Modified

2026-07-18T18:25:29.840098552Z

Severity

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

Summary

[none]

Details

In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-6284",
            "database_specific": {
                "status": "Modified"
            },
            "id": "CVE-2019-6284",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6284",
            "published": "2019-01-14T22:29:00.343Z",
            "imported": "2026-07-17T22:02:27.534Z",
            "modified": "2026-06-17T02:38:56.067Z"
        }
    ]
}

References

Affected packages

Julia / libsass_jll

Package

Name: libsass_jll
Purl: pkg:julia/libsass_jll?uuid=47bcb7c8-5119-555a-9eeb-0afcc36cd728

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.6.4+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-509.json"