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.
History

Thu, 12 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 11 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Moderate


Fri, 06 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Golang
Golang net
Vendors & Products Golang
Golang net

Thu, 05 Feb 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Quadratic parsing complexity in golang.org/x/net/html
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published: 2026-02-05T17:48:44.562Z

Updated: 2026-02-12T15:23:55.509Z

Reserved: 2025-05-13T23:31:29.597Z

Link: CVE-2025-47911

cve-icon Vulnrichment

Updated: 2026-02-12T15:23:50.510Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-02-05T18:16:09.893

Modified: 2026-02-12T16:16:03.417

Link: CVE-2025-47911

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-05T17:48:44Z

Links: CVE-2025-47911 - Bugzilla