JLSEC-2026-241

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-241.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-241.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-241
Upstream
  • EUVD-2023-44449
  • GHSA-c945-cqj5-wfv6
Published
2026-04-27T18:33:55.942Z
Modified
2026-07-25T18:24:08.264908579Z
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: Checking excessively long DH keys or parameters may be very slow.
Details

Issue summary: Checking excessively long DH keys or parameters may be very slow.

Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or 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.

The function DH_check() performs various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter value can also trigger an overly long computation during some of these checks. A correct q value, if present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if q is larger than p.

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

The function DH_check() is itself 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_ex() and EVP_PKEY_param_check().

Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the "-check" option.

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 
{
    "sources": [
        {
            "database_specific": {
                "status": "Modified"
            },
            "id": "CVE-2023-3817",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-3817",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3817",
            "modified": "2026-06-17T06:14:55.283Z",
            "imported": "2026-07-17T21:27:07.004Z",
            "published": "2023-07-31T16:15:10.497Z"
        },
        {
            "id": "GHSA-c945-cqj5-wfv6",
            "url": "https://api.github.com/advisories/GHSA-c945-cqj5-wfv6",
            "html_url": "https://github.com/advisories/GHSA-c945-cqj5-wfv6",
            "modified": "2024-10-14T15:31:49Z",
            "imported": "2026-07-17T21:27:07.164Z",
            "published": "2023-07-31T18:30:22Z"
        },
        {
            "id": "EUVD-2023-44449",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2023-44449",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-44449",
            "modified": "2025-05-05T15:53:49Z",
            "imported": "2026-07-17T21:27:14.180Z",
            "published": "2023-07-31T15:34:13Z"
        }
    ],
    "license": "CC-BY-4.0"
}
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
1.1.22+0
Introduced
3.0.8+0
Fixed
3.0.10+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-241.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-2026-241.json"