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Microsoft Security Response CenterCVE-2026-126189

Soup Sieve: Quadratic-time denial of service when matching `:has()`

MediumVendor CVSS 5.3 / 10 1 CVE Published Nov 13, 2026 at 8:42 PM UTC
Get alerts for azl4 python-soupsieve 2.8.2-4.azl4 on Azure Linux

Summary

Mariner

Products covered

  • azl4 python-soupsieve 2.8.2-4.azl4 on Azure Linux 4.0

Remediation

Release Notes

CVEs in this advisory 1

CVE-2026-126189

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.

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