JLSEC-2026-1134

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1134.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1134.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-1134
Upstream
  • EUVD-2026-35477
  • GHSA-4jgc-cj59-f9mm
Published
2026-08-03T19:08:57.739Z
Modified
2026-08-03T19:20:54.080700181Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files...
Details

Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery.

Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability.

If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker.

The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

Database specific
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34181",
            "database_specific": {
                "status": "Analyzed"
            },
            "modified": "2026-07-23T08:10:00.137Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34181",
            "imported": "2026-08-03T18:18:15.431Z",
            "id": "CVE-2026-34181",
            "published": "2026-06-09T17:17:04.740Z"
        },
        {
            "html_url": "https://github.com/advisories/GHSA-4jgc-cj59-f9mm",
            "imported": "2026-08-03T18:20:15.806Z",
            "modified": "2026-06-10T18:32:45Z",
            "url": "https://api.github.com/advisories/GHSA-4jgc-cj59-f9mm",
            "id": "GHSA-4jgc-cj59-f9mm",
            "published": "2026-06-09T18:30:42Z"
        },
        {
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35477",
            "imported": "2026-08-03T18:18:17.733Z",
            "modified": "2026-06-10T16:02:19Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-35477",
            "id": "EUVD-2026-35477",
            "published": "2026-06-09T16:03:22Z"
        }
    ]
}
References

Affected packages

Julia / AppBundler

Package

Name
AppBundler
Purl
pkg:julia/AppBundler?uuid=40eb83ae-c93a-480c-8f39-f018b568f472

Affected ranges

Type
SEMVER
Events
Introduced
1.0.0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1134.json"

Julia / OpenSSL_jll

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
3.5.0+0
Fixed
3.5.7+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1134.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
1.29.203+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1134.json"