CVE-2026-111062

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Source

https://cve.org/CVERecord?id=CVE-2026-111062

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111062.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-111062

Aliases

GHSA-j7h2-66j4-ghjf

Downstream

CGA (2)

UBUNTU (1)

UBUNTU-CVE-2026-111062

Published

2026-11-05T20:47:35Z

Modified

2026-11-07T02:48:21Z

Severity

2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

A russh SSH server accepts a publickey authentication whose signature uses a different algorithm than the one named in the request

Details

russh is a Rust SSH client and server library. From version 0.34.0-beta.1 until version 0.64.0, its SSH server does not require the signature algorithm in a public-key authentication signature to match the algorithm named in the authentication request. A client possessing an authorized RSA private key can announce rsa-sha2-512 while supplying a valid ssh-rsa SHA-1 signature, bypassing restrictions or producing misleading audit records when applications rely on the requested algorithm. A valid private-key signature remains required, and russh clients are not affected. This issue is fixed in version 0.64.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111062.json"
}

References

Affected packages

Git / github.com/eugeny/russh

Affected ranges

Type

GIT

Repo

https://github.com/eugeny/russh

Events

Introduced

Fixed

497314960942156301ab17221b1c681156239f39

Fixed

a0ded76bdc352f8fbeaaeb175fb2a0c586fbc8f2

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.34.0-beta.1"
                },
                {
                    "fixed": "0.64.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "a0ded76bdc352f8fbeaaeb175fb2a0c586fbc8f2"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.64.0",
            "range": [
                {
                    "fixed": "497314960942156301ab17221b1c681156239f39"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*

0.37.0-beta.1

v0.*

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

v0.40.0

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

v0.50.0

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

v0.60.0

v0.60.1

v0.60.2

v0.60.3

v0.61.0

v0.61.1

v0.61.2

v0.62.0

v0.62.1

v0.62.2

v0.62.3

v0.62.4

v0.62.5

v0.62.6

v0.62.7

v0.63.0

v0.63.0-beta.1

v0.63.1

v0.63.2

v0.63.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111062.json"