JLSEC-2026-700

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-700.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-700.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-700
Upstream
  • EUVD-2026-39547
  • GHSA-q349-x427-xg3w
Published
2026-07-14T21:41:35.775Z
Modified
2026-07-14T21:50:12.558573890Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a...
Details

Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a certificate with an SM3wSM2 signature, the Subject Key Identifier computation reads the trailing 65 bytes of the public key without checking that the key is at least that long. A public key shorter than 65 bytes results in an out-of-bounds heap read, leading to a potential crash (denial of service); there is no out-of-bounds write. Note this only affects builds with SM2 support (--enable-sm2 or --enable-all).

Database specific
{
    "sources": [
        {
            "published": "2026-06-25T20:17:09.907Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-12340",
            "imported": "2026-07-14T21:22:49.596Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12340",
            "id": "CVE-2026-12340",
            "modified": "2026-06-26T18:54:32.567Z",
            "database_specific": {
                "status": "Analyzed"
            }
        },
        {
            "html_url": "https://github.com/advisories/GHSA-q349-x427-xg3w",
            "imported": "2026-07-14T21:22:56.593Z",
            "published": "2026-06-25T21:31:31Z",
            "id": "GHSA-q349-x427-xg3w",
            "modified": "2026-06-26T21:32:11Z",
            "url": "https://api.github.com/advisories/GHSA-q349-x427-xg3w"
        },
        {
            "modified": "2026-06-26T13:59:21Z",
            "imported": "2026-07-14T21:22:51.127Z",
            "published": "2026-06-25T19:36:21Z",
            "id": "EUVD-2026-39547",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39547",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39547"
        }
    ],
    "license": "CC-BY-4.0"
}
References

Affected packages

Julia / wolfSSL_jll

Package

Name
wolfSSL_jll
Purl
pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5

Affected ranges

Type
SEMVER
Events
Introduced
5.7.2+0
Fixed
5.9.2+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-700.json"