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

2026-05-26T14:17:50Z

Modified

2026-07-25T18:24:33Z

Severity

5.0 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

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

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

0 Unknown 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"