CVE-2025-47911

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/golang/vulndb/issues/4440	Issue Tracking
https://go.dev/cl/709876	Patch
https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c	Mailing List Third Party Advisory
https://pkg.go.dev/vuln/GO-2026-4440	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:go:html:*:*:*:*:*:go:*:*

History

18 Feb 2026, 17:48

Type	Values Removed	Values Added
Summary		(es) La función html.Parse en golang.org/x/net/html tiene una complejidad de análisis cuadrática al procesar ciertas entradas, lo que puede llevar a una denegación de servicio (DoS) si un atacante proporciona contenido HTML especialmente diseñado.
References	~~() https://github.com/golang/vulndb/issues/4440 -~~	() https://github.com/golang/vulndb/issues/4440 - Issue Tracking
References	~~() https://go.dev/cl/709876 -~~	() https://go.dev/cl/709876 - Patch
References	~~() https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c -~~	() https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c - Mailing List, Third Party Advisory
References	~~() https://pkg.go.dev/vuln/GO-2026-4440 -~~	() https://pkg.go.dev/vuln/GO-2026-4440 - Vendor Advisory
CPE		cpe:2.3:a:go:html::::::go::*
CWE		NVD-CWE-noinfo
First Time		Go html Go

12 Feb 2026, 16:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3

05 Feb 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-05 18:16

Updated : 2026-02-18 17:48

NVD link : CVE-2025-47911

Mitre link : CVE-2025-47911

CVE.ORG link : CVE-2025-47911

JSON object : View

Products Affected

go

html

CWE

NVD-CWE-noinfo

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