CVE-2026-43798

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-43798
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43798.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43798
Aliases
  • GHSA-998x-vgvp-xwpc
Published
2026-08-20T21:17:06.580Z
Modified
2026-09-05T08:04:48.549183Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and content against any application built on swift-nio-ssh. This vulnerability is addressed in swift-nio-ssh version 0.14.1.

References

Affected packages

Git / github.com/apple/swift-nio-ssh

Affected ranges

Type
GIT
Repo
https://github.com/apple/swift-nio-ssh
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
31cdc3c3391a10460dedf1170530cf651d2ca496
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:apple:swiftnio_ssh:*:*:*:*:*:swift:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.14.1"
        }
    ]
}

Affected versions

0.*
0.0.1
0.0.2
0.1.0
0.10.0
0.11.0
0.12.0
0.13.0
0.14.0
0.2.0
0.2.1
0.3.0
0.3.1
0.3.2
0.3.3
0.4.0
0.4.1
0.5.0
0.6.0
0.6.1
0.7.0
0.7.1
0.8.0
0.9.0
0.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43798.json"