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Ubuntu Security NoticesUSN-8706-1

USN-8706-1: zlib vulnerability

Severity not listed 0 CVEs Published Aug 31, 2026 at 5:30 PM UTC

Summary

It was discovered that zlib incorrectly handled negative length parameters in CRC32 combine functions. An attacker could use this issue to cause a denial of service via excessive CPU consumption.

Products covered

A separate affected-products list was not included in the collected bulletin.

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 0

No CVE identifiers were listed in the collected bulletin.

Updates

  1. Published by Ubuntu

    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.