Out-of-bounds Write Affecting rsync-daemon package, versions <0:3.2.7-1.el9_8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-RHEL9-RSYNCDAEMON-19968847
  • published20 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-70456  (opens in a new tab)
CWE-787  (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 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

CVSS Base Scores

version 3.1