Bug 2515373 (CVE-2026-70454) - CVE-2026-70454 rsync: rsync: TLS Certificate Validation Bypass allows interception of encrypted sessions
Summary: CVE-2026-70454 rsync: rsync: TLS Certificate Validation Bypass allows interce...
Keywords:
Status: NEW
Alias: CVE-2026-70454
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2521900
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-13 15:50 UTC by OSIDB Bzimport
Modified: 2026-09-14 18:03 UTC (History)
17 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-2026:67462 0 None None None 2026-09-14 18:01:35 UTC
Red Hat Product Errata RHSA-2026:67463 0 None None None 2026-09-14 18:03:00 UTC

Description OSIDB Bzimport 2026-08-13 15:50:56 UTC 
rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt or tamper with rsync session content without detection by the client.
Comment 2 Jon Orris 2026-09-14 18:01:34 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:67462 https://access.redhat.com/errata/RHSA-2026:67462
Comment 3 Jon Orris 2026-09-14 18:02:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:67463 https://access.redhat.com/errata/RHSA-2026:67463
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