JLSEC-2026-519

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-519.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-519.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-519

Upstream

CVE-2020-24659

Published

2026-05-26T14:17:50.003Z

Modified

2026-07-25T18:24:33.634761481Z

Severity

5.0 (Medium) CVSS_V2 - AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.

Database specific

{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-24659",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24659",
            "imported": "2026-07-17T22:03:35.127Z",
            "database_specific": {
                "status": "Modified"
            },
            "id": "CVE-2020-24659",
            "published": "2020-09-04T15:15:10.803Z",
            "modified": "2026-06-17T03:05:56.017Z"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / GnuTLS_jll

Package

Name: GnuTLS_jll
Purl: pkg:julia/GnuTLS_jll?uuid=0951126a-58fd-58f1-b5b3-b08c7c4a876d

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.7.1+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-519.json"