JLSEC-2026-223

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-223.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-223.json
JSON Data
https://api.test.osv.dev/v1/vulns/JLSEC-2026-223
Upstream
  • EUVD-2021-1628
Published
2026-04-27T18:33:55.942Z
Modified
2026-04-27T20:32:28.322945450Z
Summary
openssl-src NULL pointer Dereference in signature_algorithms processing
Details

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signaturealgorithms extension (where it was present in the initial ClientHello), but includes a signaturealgorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

Database specific 
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "database_specific": {
                "status": "Modified"
            },
            "imported": "2026-04-27T16:32:29.459Z",
            "id": "CVE-2021-3449",
            "published": "2021-03-25T15:15:13.450Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-3449",
            "modified": "2024-11-21T06:21:33.050Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3449"
        },
        {
            "id": "GHSA-83mx-573x-5rw9",
            "imported": "2026-04-27T16:35:59.226Z",
            "published": "2021-08-25T20:54:02Z",
            "url": "https://api.github.com/advisories/GHSA-83mx-573x-5rw9",
            "modified": "2023-09-05T14:49:34Z",
            "html_url": "https://github.com/advisories/GHSA-83mx-573x-5rw9"
        },
        {
            "id": "EUVD-2021-1628",
            "imported": "2026-04-27T16:33:20.020Z",
            "published": "2021-03-25T14:25:13Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2021-1628",
            "modified": "2024-09-17T03:43:55Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1628"
        }
    ]
}
References
Credits

Affected packages

Julia / OpenSSL_jll

Package

Name
OpenSSL_jll
Purl
pkg:julia/OpenSSL_jll?uuid=458c3c95-2e84-50aa-8efc-19380b2a3a95

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.10+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-223.json"