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
2026-07-25T18:24:47.629196599Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
Out-of-bounds heap read during SM2/SM3 certificate signature verification
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
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "database_specific": {
                "status": "Analyzed"
            },
            "id": "CVE-2026-12340",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12340",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-12340",
            "published": "2026-06-25T20:17:09.907Z",
            "modified": "2026-06-26T18:54:32.567Z",
            "imported": "2026-07-17T22:27:36.479Z"
        },
        {
            "id": "GHSA-q349-x427-xg3w",
            "html_url": "https://github.com/advisories/GHSA-q349-x427-xg3w",
            "url": "https://api.github.com/advisories/GHSA-q349-x427-xg3w",
            "published": "2026-06-25T21:31:31Z",
            "modified": "2026-06-26T21:32:11Z",
            "imported": "2026-07-17T22:27:36.674Z"
        },
        {
            "id": "EUVD-2026-39547",
            "published": "2026-06-25T19:36:21Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39547",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39547",
            "modified": "2026-06-26T13:59:21Z",
            "imported": "2026-07-17T22:27:36.857Z"
        }
    ]
}
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"