CVE-2026-42189

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Source
https://cve.org/CVERecord?id=CVE-2026-42189
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42189.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42189
Aliases
Downstream
CGA (2)
DEBIAN (1)
UBUNTU (1)
Published
2026-05-08T19:49:51Z
Modified
2026-10-28T02:30:42Z
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
Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth
Details

Russh is a Rust SSH client & server library. Prior to version 0.60.1, a pre-authentication denial-of-service vulnerability exists in the server's keyboard-interactive authentication handler. A malicious client can crash any russh-based server that implements keyboard-interactive auth (e.g., for 2FA/TOTP) with a single malformed packet, requiring no credentials. This issue has been patched in version 0.60.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-770",
        "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42189.json"
}
References

Affected packages

Git / github.com/eugeny/russh

Affected ranges

Type
GIT
Repo
https://github.com/eugeny/russh
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5a6ca29ef2171b070433308fcf0e43785b608071
Fixed
6c3c80a9b6d60763d6227d60fa8310e57172a4d1
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.60.1"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "6c3c80a9b6d60763d6227d60fa8310e57172a4d1"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.60.1",
            "range": [
                {
                    "fixed": "5a6ca29ef2171b070433308fcf0e43785b608071"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}
Type
GIT
Repo
https://github.com/warp-tech/warpgate
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ffc755f0137944bd39cf4cbce90f4279da500943
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.23.1"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

0.*
0.22.0-dl
0.37.0-beta.1
chart-v0.*
chart-v0.0.2
chart-v0.0.3
chart-v0.0.4
v0.*
v0.1.0
v0.1.1
v0.10.0
v0.10.1
v0.10.2
v0.11.0
v0.12.0
v0.12.0-beta.1
v0.12.0-beta.2
v0.13.0
v0.13.0-beta.1
v0.13.0-beta.2
v0.13.1
v0.13.2
v0.14.0
v0.14.0-beta.1
v0.14.0-beta.2
v0.14.0-beta.3
v0.14.1
v0.15.0
v0.15.0-beta.1
v0.15.0-beta.2
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.19.1
v0.2.0
v0.2.1
v0.2.2
v0.20.0
v0.20.1
v0.20.2
v0.21.0
v0.21.1
v0.22.0-beta.1
v0.22.0-beta.2
v0.22.0-beta.3
v0.22.0-beta.4
v0.22.0-beta.5
v0.22.0-beta.6
v0.23.0
v0.3.0
v0.34.0
v0.35.0-beta.1
v0.35.0-beta.2
v0.35.0-beta.3
v0.35.0-beta.5
v0.35.0-beta.6
v0.35.0-beta.7
v0.35.0-beta.8
v0.35.0-beta.9
v0.36.1
v0.37.0
v0.37.0-beta.1
v0.37.1
v0.38.0
v0.38.0-beta.1
v0.39.0-beta.1
v0.4.0
v0.40.0
v0.40.1
v0.40.2
v0.42.0
v0.43.0
v0.43.0-beta.1
v0.44.0
v0.44.0-beta.1
v0.44.0-beta.3
v0.44.0-beta.4
v0.45.0
v0.46.0
v0.47.0-beta.3
v0.47.0-beta.4
v0.48.0
v0.48.1
v0.48.2
v0.49.0
v0.5.0
v0.50.0
v0.50.0-beta.10
v0.50.0-beta.11
v0.50.0-beta.12
v0.50.0-beta.2
v0.50.0-beta.3
v0.50.0-beta.4
v0.50.0-beta.5
v0.50.0-beta.6
v0.50.0-beta.7
v0.50.0-beta.8
v0.50.0-beta.9
v0.50.1
v0.50.3
v0.50.4
v0.51.0
v0.51.0-beta.1
v0.51.0-beta.2
v0.51.0-beta.3
v0.51.1
v0.52.0
v0.52.0-beta.1
v0.52.1
v0.53.0
v0.53.0-beta.1
v0.54.0
v0.54.1
v0.54.2
v0.54.3
v0.54.4
v0.54.5
v0.54.6
v0.55.0
v0.56.0
v0.57.0
v0.57.1
v0.58.0
v0.59.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.60.0
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.8.0
v0.8.1
v0.9.0
v0.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42189.json"