JLSEC-2026-434

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-434.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-434.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-434
Upstream
  • EUVD-2025-17371
  • GHSA-8h93-38hx-vv92
Published
2026-05-04T13:12:06.605Z
Modified
2026-05-04T13:32:47.047145198Z
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
Summary
Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted...
Details

Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop.

There is no other way for the application to escape or exit this loop other than killing the thread/process.

This might be used to DoS libcurl-using application.

Database specific
{
    "sources": [
        {
            "published": "2025-06-07T08:15:20.687Z",
            "database_specific": {
                "status": "Analyzed"
            },
            "imported": "2026-05-02T08:39:49.407Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5399",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-5399",
            "id": "CVE-2025-5399",
            "modified": "2025-07-30T19:41:33.457Z"
        },
        {
            "published": "2025-06-07T09:30:18Z",
            "imported": "2026-05-02T08:42:42.714Z",
            "html_url": "https://github.com/advisories/GHSA-8h93-38hx-vv92",
            "url": "https://api.github.com/advisories/GHSA-8h93-38hx-vv92",
            "id": "GHSA-8h93-38hx-vv92",
            "modified": "2025-07-30T21:32:41Z"
        },
        {
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-17371",
            "imported": "2026-05-02T08:42:17.767Z",
            "published": "2025-06-07T07:49:09Z",
            "id": "EUVD-2025-17371",
            "modified": "2025-06-09T13:20:29Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-17371"
        }
    ],
    "license": "CC-BY-4.0"
}
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
8.13.0+0
Fixed
8.14.1+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-434.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
8.13.0+0
Fixed
8.14.1+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-434.json"