CVE-2025-47911: Go Html

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.

Affected products

• Go Html: before 0.45.0 (fixed in 0.45.0)

Published 2026-02-05. Last modified 2026-06-17.