CVE-2025-47911

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/5/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

go:html

References

https://github.com/golang/vulndb/issues/4440(security@golang.org)

https://go.dev/cl/709876(security@golang.org)

https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c(security@golang.org)

https://pkg.go.dev/vuln/GO-2026-4440(security@golang.org)

IOC Correlations

No correlations recorded

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