JLSEC-2026-784

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-784.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-784.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-784

Upstream

CVE-2026-3731

Published

2026-07-23T14:46:44.710Z

Modified

2026-07-25T18:24:02.298006351Z

Severity

5.0 (Medium) CVSS_V2 - AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS Calculator
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
6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected component.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "modified": "2026-06-17T10:44:05.853Z",
            "published": "2026-03-08T11:15:50.307Z",
            "id": "CVE-2026-3731",
            "imported": "2026-07-22T03:16:27.638Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3731",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3731",
            "database_specific": {
                "status": "Analyzed"
            }
        }
    ]
}

References

Affected packages

Julia / libssh_jll

Package

Name: libssh_jll
Purl: pkg:julia/libssh_jll?uuid=a8d4f100-aa25-5708-be18-96e0805c2c9d

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.11.4+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-784.json"