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: 2026-04-02
Score: 3.1 Low
EPSS: < 1% Very Low
KEV: No
Impact: Information disclosure by unintended cryptographic algorithm use
Action: Assess Impact
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4584-1 openssh security update
Ubuntu USN Ubuntu USN USN-8222-1 OpenSSH vulnerabilities
History

Sat, 04 Apr 2026 01:15:00 +0000

Type Values Removed Values Added
Title OpenSSH ECDSA Algorithm Misinterpretation Allows Unintended Keys OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage
Weaknesses CWE-115
References
Metrics threat_severity

None

threat_severity

Low


Fri, 03 Apr 2026 14:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 03 Apr 2026 10:15:00 +0000

Type Values Removed Values Added
Title OpenSSH ECDSA Algorithm Misinterpretation Allows Unintended Keys

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
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.
First Time appeared Openbsd
Openbsd openssh
Weaknesses CWE-670
CPEs cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Vendors & Products Openbsd
Openbsd openssh
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-04-03T13:07:56.358Z

Reserved: 2026-04-02T16:52:52.884Z

Link: CVE-2026-35387

cve-icon Vulnrichment

Updated: 2026-04-03T13:07:53.196Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-02T17:16:27.790

Modified: 2026-04-27T14:05:11.273

Link: CVE-2026-35387

cve-icon Redhat

Severity : Low

Publid Date: 2026-04-02T16:52:53Z

Links: CVE-2026-35387 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-07T07:55:56Z

Weaknesses