JLSEC-2026-518

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-518.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-518.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-518

Upstream

CVE-2020-13777

Published

2026-05-26T14:17:50Z

Modified

2026-07-18T00:00:50Z

Severity

5.8 CVSS_V2 - AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS Calculator
7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

Details

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

Database specific

{
    "license":  "CC-BY-4.0",
    "sources":  [
        {
            "database_specific":  {
                "status":  "Modified"
            },
            "html_url":  "https://nvd.nist.gov/vuln/detail/CVE-2020-13777",
            "id":  "CVE-2020-13777",
            "imported":  "2026-07-17T22:03:29.015Z",
            "modified":  "2026-06-17T02:53:38.507Z",
            "published":  "2020-06-04T07:15:10Z",
            "url":  "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-13777"
        }
    ]
}

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-2026-518.json"