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Ubuntu Security NoticesUSN-8670-3

USN-8670-3: curl vulnerability

Severity not listed 0 CVEs Published Sep 8, 2026 at 5:20 PM UTC

Summary

USN-8670-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory details: Joshua Rogers discovered that curl incorrectly handled reusing connections when client certificate settings changed. This could result in the wrong client certificates being used, contrary to expectations.

Products covered

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

Remediation

USN-8670-1 fixed a vulnerability in curl.

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.