JLSEC-2026-1122

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1122.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1122.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-1122
Upstream
Published
2026-08-03T19:08:57.739Z
Modified
2026-08-03T19:15:03.768811576Z
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
[none]
Details

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.14 and 2.12.5, if the nats-server has the "leafnode" configuration enabled (not default), then anyone who can connect can crash the nats-server by triggering a panic. This happens pre-authentication and requires that compression be enabled (which it is, by default, when leafnodes are used). Versions 2.11.14 and 2.12.5 contain a fix. As a workaround, disable compression on the leafnode port.

Database specific 
{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-29785",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29785",
            "imported": "2026-08-03T18:16:27.031Z",
            "published": "2026-03-25T20:16:30.373Z",
            "id": "CVE-2026-29785",
            "database_specific": {
                "status": "Modified"
            },
            "modified": "2026-08-03T13:17:38.960Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References

Affected packages

Julia / nats_server_jll

Package

Name
nats_server_jll
Purl
pkg:julia/nats_server_jll?uuid=8b1691f7-6002-537d-bdf7-c6203599dc08

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.14.3+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1122.json"