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CVE Vulnerability Details :
CVE-2026-25680
PUBLISHED
More InfoOfficial Page
Assigner-Go
Assigner Org ID-1bb62c36-49e3-4200-9d77-64a1400537cc
View Known Exploited Vulnerability (KEV) details
Published At-22 May, 2026 | 15:01
Updated At-22 May, 2026 | 17:00
Rejected At-
▼CVE Numbering Authority (CNA)
Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.

Affected Products
Vendor
golang.org/x/net
Product
golang.org/x/net/html
Collection URL
https://pkg.go.dev
Package Name
golang.org/x/net/html
Program Routines
  • parser.parse
  • Parse
  • ParseFragment
  • ParseFragmentWithOptions
  • ParseWithOptions
Default Status
unaffected
Versions
Affected
  • From 0 before 0.55.0 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-407: Inefficient Algorithmic Complexity
Type: N/A
CWE ID: N/A
Description: CWE-407: Inefficient Algorithmic Complexity
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
IPC Labs
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://go.dev/cl/781702
N/A
https://go.dev/issue/79573
N/A
https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8
N/A
https://pkg.go.dev/vuln/GO-2026-5028
N/A
Hyperlink: https://go.dev/cl/781702
Resource: N/A
Hyperlink: https://go.dev/issue/79573
Resource: N/A
Hyperlink: https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-5028
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found