CVE-2025-47911
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Go Html
PublishedFeb 5, 2026
First seenFeb 5, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- go html0.45.0 or later
- golang.org/x/net/html0.45.0 or later
- golang.org/x/net0.45.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| go html | v < 0.45.0 | 0.45.0 |
| golang.org/x/net/htmlGo | v < 0.45.0 | 0.45.0 |
| golang.org/x/netGo | v < 0.45.0 | 0.45.0 |
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