JLSEC-2026-63

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-63.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-63.json
JSON Data
https://api.test.osv.dev/v1/vulns/JLSEC-2026-63
Upstream
Published
2026-04-09T21:32:46.691Z
Modified
2026-04-09T21:45:31.219348Z
Summary
[none]
Details

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.

Database specific
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "id": "CVE-2020-14145",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-14145",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14145",
            "published": "2020-06-29T18:15:11.940Z",
            "modified": "2025-12-18T15:15:48.410Z",
            "imported": "2026-04-09T14:56:18.788Z"
        }
    ]
}
References

Affected packages

Julia / OpenSSH_jll

Package

Name
OpenSSH_jll
Purl
pkg:julia/OpenSSH_jll?uuid=9bd350c2-7e96-507f-8002-3f2e150b4e1b

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.1.0+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-63.json"