JLSEC-2026-244

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-244.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-244.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-244
Upstream
  • EUVD-2023-57969
  • GHSA-2cj7-mg3x-9mhq
Published
2026-04-27T18:33:55.942Z
Modified
2026-07-25T18:24:08.584671928Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys...
Details

Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow.

Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service.

While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters.

Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q.

An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack.

DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate().

Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application.

The OpenSSL SSL/TLS implementation is not affected by this issue.

The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

Database specific 
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "id": "CVE-2023-5678",
            "published": "2023-11-06T16:15:42.670Z",
            "imported": "2026-07-17T21:27:35.488Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-5678",
            "modified": "2026-06-17T06:49:03.663Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5678",
            "database_specific": {
                "status": "Modified"
            }
        },
        {
            "id": "GHSA-2cj7-mg3x-9mhq",
            "published": "2023-11-06T18:30:19Z",
            "imported": "2026-07-17T21:27:35.657Z",
            "url": "https://api.github.com/advisories/GHSA-2cj7-mg3x-9mhq",
            "modified": "2026-05-12T12:31:34Z",
            "html_url": "https://github.com/advisories/GHSA-2cj7-mg3x-9mhq"
        },
        {
            "id": "EUVD-2023-57969",
            "published": "2023-11-06T15:47:30Z",
            "imported": "2026-07-17T21:27:46.249Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2023-57969",
            "modified": "2026-05-12T10:32:15Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-57969"
        }
    ]
}
References

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
3.0.13+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-244.json"

Julia / Openresty_jll

Package

Name
Openresty_jll
Purl
pkg:julia/Openresty_jll?uuid=87da34d4-7b1b-5a94-8376-8cb65bf3132c

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.27.1+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-244.json"