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Microsoft Security Response CenterCVE-2026-70455

rsync 3.4.2 < 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion

HighVendor CVSS 7.5 / 10 1 CVE Published Aug 23, 2026 at 2:45 PM UTC

Summary

Mariner

Products covered

  • azl3 rsync 3.4.3-1 on Azure Linux 3.0

Remediation

CBL-Mariner Releases

Vendor-listed fixes

  • 3.5.0-1

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.