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OpenAdvisories
Medium ALSA-2026:6825 1 CVE

Moderate: rsync security update

Published Apr 7, 2026 · Updated Oct 29, 2026

Summary

The rsync utility enables the users to copy and synchronize files locally or across a network. Synchronization with rsync is fast because rsync only sends the differences in files over the network instead of sending whole files. The rsync utility is also used as a mirroring tool.

Security Fix(es):

* rsync: Rsync: Out of bounds array access via negative index (CVE-2025-10158)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 2

ReleasePackageFixed in
AlmaLinux · 10 rsync-daemon 3.4.1-2.el10_1.2
AlmaLinux · 10 rsync-rrsync 3.4.1-2.el10_1.2

Vulnerabilities 1

  • Medium 4.3

    Rsync: Out of bounds array access via negative index

    A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The malicious rsync client requires at least read access to the remote rsync module in order to trigger t…

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-10158
  • report
    https://bugzilla.redhat.com/2415637
  • advisory
    https://errata.almalinux.org/10/ALSA-2026-6825.html