JLSEC-2026-1222

See a problem?
Please try reporting it to the source first.

Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1222.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1222.json

JSON Data

https://api.test.osv.dev/v1/vulns/JLSEC-2026-1222

Upstream

CVE-2026-9547

EUVD-2026-41495

GHSA-xq9p-gxg6-f7q6

Published

2026-08-07T20:11:58.984Z

Modified

2026-08-07T20:29:07.135848087Z

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

When a libcurl-based application performs transfers via `SCP://` or `SFTP://` and utilizes the ...

Details

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPT_SSH_KEYFUNCTION callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for that host in the known_hosts file. Instead of rejecting the mismatch, the callback mechanism fails to properly enforce the restriction, allowing the connection to succeed without warning and risking a potential man-in-the-middle attack.

Database specific

{
    "sources": [
        {
            "imported": "2026-08-07T19:54:39.020Z",
            "modified": "2026-07-07T14:52:29.503Z",
            "published": "2026-07-03T07:16:25.990Z",
            "database_specific": {
                "status": "Analyzed"
            },
            "id": "CVE-2026-9547",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-9547",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9547"
        },
        {
            "imported": "2026-08-07T19:56:01.762Z",
            "id": "GHSA-xq9p-gxg6-f7q6",
            "url": "https://api.github.com/advisories/GHSA-xq9p-gxg6-f7q6",
            "modified": "2026-07-06T18:30:52Z",
            "published": "2026-07-03T09:31:27Z",
            "html_url": "https://github.com/advisories/GHSA-xq9p-gxg6-f7q6"
        },
        {
            "imported": "2026-08-07T19:55:07.047Z",
            "modified": "2026-07-06T16:48:14Z",
            "published": "2026-07-03T06:18:44Z",
            "id": "EUVD-2026-41495",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-41495",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-41495"
        }
    ],
    "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

0Unknown introduced version / All previous versions are affected

Fixed

8.21.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1222.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

7.70.0+0

Fixed

8.21.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1222.json"