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Vulnerability Details :

CVE-2026-35387

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-02 Apr, 2026 | 16:52
Updated At-03 Apr, 2026 | 13:07
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:02 Apr, 2026 | 16:52
Updated At:03 Apr, 2026 | 13:07
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
OpenBSDOpenBSD
Product
OpenSSH
Default Status
unaffected
Versions
Affected
  • From 0 before 10.3 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-670CWE-670 Always-Incorrect Control Flow Implementation
Type: CWE
CWE ID: CWE-670
Description: CWE-670 Always-Incorrect Control Flow Implementation
Metrics
VersionBase scoreBase severityVector
3.13.1LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Version: 3.1
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.openssh.org/releasenotes.html#10.3p1
N/A
https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
N/A
https://www.openwall.com/lists/oss-security/2026/04/02/3
N/A
Hyperlink: https://www.openssh.org/releasenotes.html#10.3p1
Resource: N/A
Hyperlink: https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
Resource: N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2026/04/02/3
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:02 Apr, 2026 | 17:16
Updated At:27 Apr, 2026 | 14:05

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.13.1LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CPE Matches
OpenBSD
openbsd
>>openssh>>Versions before 10.3(exclusive)
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-670Primarycve@mitre.org
CWE ID: CWE-670
Type: Primary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2cve@mitre.org
Third Party Advisory
https://www.openssh.org/releasenotes.html#10.3p1cve@mitre.org
Release Notes
https://www.openwall.com/lists/oss-security/2026/04/02/3cve@mitre.org
Third Party Advisory
Hyperlink: https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
Source: cve@mitre.org
Resource:
Third Party Advisory
Hyperlink: https://www.openssh.org/releasenotes.html#10.3p1
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://www.openwall.com/lists/oss-security/2026/04/02/3
Source: cve@mitre.org
Resource:
Third Party Advisory

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2026-35414
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.2||MEDIUM
EPSS-0.03% / 9.05%
||
7 Day CHG+0.01%
Published-02 Apr, 2026 | 17:08
Updated-10 Apr, 2026 | 19:36
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.

Action-Not Available
Vendor-OpenBSD
Product-opensshOpenSSH
CWE ID-CWE-670
Always-Incorrect Control Flow Implementation
Details not found