CVE-2026-35387_CVE-2026-35387

3.1 / 10

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

Basic Information

ID CVE-2026-35387

Source mitre

Published Apr 2, 2026 at 16:52

Modified Apr 3, 2026 at 13:07

Affected Product

Vendor OpenBSD

Product OpenSSH

Affected Versions OpenBSD OpenSSH 0

CWE Classification

CWE-670

References

{
    "lastseen": "",
    "description": "OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.",
    "published": "2026-04-02T16:52:53.623Z",
    "modified": "2026-04-03T13:07:56.358Z",
    "type": "cve",
    "title": "CVE-2026-35387",
    "source": "mitre",
    "references": "https://www.openssh.org/releasenotes.html#10.3p1\nhttps://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2\nhttps://www.openwall.com/lists/oss-security/2026/04/02/3",
    "id": "CVE-2026-35387",
    "bulletinFamily": "",
    "cwe": [
        "CWE-670"
    ],
    "cvelist": null,
    "sourceData": "OpenBSD OpenSSH 0",
    "sourceHref": "",
    "cvss": {
        "score": 3.1,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OpenSSH",
    "version": "0",
    "vendor": "OpenBSD",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}