Improper Certificate Validation Affecting rsync-daemon package, versions <0:3.2.7-1.el9_8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.19% (8th percentile)

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  • Snyk IDSNYK-RHEL9-RSYNCDAEMON-19980880
  • published20 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-70454  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:9 rsync-daemon to version 0:3.2.7-1.el9_8 or higher.
This issue was patched in RHSA-2026:67462.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rsync-daemon package and not the rsync-daemon package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1