Bug 2454494 (CVE-2026-35387) - CVE-2026-35387 OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage
Summary: CVE-2026-35387 OpenSSH: OpenSSH: Information disclosure due to unintended cry...
Keywords:
Status: NEW
Alias: CVE-2026-35387
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2454944
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-02 18:02 UTC by OSIDB Bzimport
Modified: 2026-05-27 18:12 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:12389 0 None None None 2026-04-30 16:30:20 UTC
Red Hat Product Errata RHSA-2026:13380 0 None None None 2026-05-04 09:32:21 UTC
Red Hat Product Errata RHSA-2026:13381 0 None None None 2026-05-04 09:42:43 UTC
Red Hat Product Errata RHSA-2026:13383 0 None None None 2026-05-04 09:46:04 UTC
Red Hat Product Errata RHSA-2026:16059 0 None None None 2026-05-11 20:09:35 UTC
Red Hat Product Errata RHSA-2026:19069 0 None None None 2026-05-19 13:07:59 UTC
Red Hat Product Errata RHSA-2026:19219 0 None None None 2026-05-19 18:03:05 UTC
Red Hat Product Errata RHSA-2026:21298 0 None None None 2026-05-27 09:52:34 UTC
Red Hat Product Errata RHSA-2026:21398 0 None None None 2026-05-27 18:12:27 UTC

Description OSIDB Bzimport 2026-04-02 18:02:04 UTC 
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.
Comment 2 errata-xmlrpc 2026-04-30 16:30:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:12389 https://access.redhat.com/errata/RHSA-2026:12389
Comment 3 errata-xmlrpc 2026-05-04 09:32:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:13380 https://access.redhat.com/errata/RHSA-2026:13380
Comment 4 errata-xmlrpc 2026-05-04 09:42:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:13381 https://access.redhat.com/errata/RHSA-2026:13381
Comment 5 errata-xmlrpc 2026-05-04 09:46:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:13383 https://access.redhat.com/errata/RHSA-2026:13383
Comment 6 errata-xmlrpc 2026-05-11 20:09:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:16059 https://access.redhat.com/errata/RHSA-2026:16059
Comment 7 errata-xmlrpc 2026-05-19 13:07:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19069 https://access.redhat.com/errata/RHSA-2026:19069
Comment 8 errata-xmlrpc 2026-05-19 18:03:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19219 https://access.redhat.com/errata/RHSA-2026:19219
Comment 9 errata-xmlrpc 2026-05-27 09:52:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:21298 https://access.redhat.com/errata/RHSA-2026:21298
Comment 10 errata-xmlrpc 2026-05-27 18:12:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:21398 https://access.redhat.com/errata/RHSA-2026:21398
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