JLSEC-2026-399

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-399.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-399.json
JSON Data
https://api.test.osv.dev/v1/vulns/JLSEC-2026-399
Upstream
Published
2026-05-04T13:12:06.605Z
Modified
2026-05-04T13:16:09.992380Z
Summary
[none]
Details

In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26.

Database specific 
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "imported": "2026-05-02T08:39:45.959Z",
            "id": "CVE-2022-42916",
            "published": "2022-10-29T02:15:09.047Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-42916",
            "database_specific": {
                "status": "Modified"
            },
            "modified": "2026-02-13T20:16:13.750Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42916"
        }
    ]
}
References

Affected packages

Julia / CURL_jll

Package

Name
CURL_jll
Purl
pkg:julia/CURL_jll?uuid=b21e61f3-bafc-59ac-ab14-4c5c62d6588d

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.5.0+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-399.json"

Julia / LibCURL_jll

Package

Name
LibCURL_jll
Purl
pkg:julia/LibCURL_jll?uuid=deac9b47-8bc7-5906-a0fe-35ac56dc84c0

Affected ranges

Type
SEMVER
Events
Introduced
7.81.0+0
Fixed
7.87.0+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-399.json"