High severity · published Mar 6, 2026
CVE-2026-25679
Incorrect parsing of IPv6 host literals in net/url
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
net/url · Go standard library
before 1.25.8; 1.26.0-0 before 1.26.1 · source: vendor
GO
GO · Golang
before 1.25.8; 1.26.0 · source: NVD
BF
Builds for Red Hat OpenShift 1.6.0 · Red Hat
All versions, or not specified · source: CISA
CO
Compliance Operator 1 · Red Hat
All versions, or not specified · source: CISA
C4
Cryostat 4 on RHEL 9 · Red Hat
All versions, or not specified · source: CISA
CM
Custom Metric Autoscaler 2.19 · Red Hat
All versions, or not specified · source: CISA
DO
DevWorkspace Operator 0.4 · Red Hat
All versions, or not specified · source: CISA
LS
Logging Subsystem for Red Hat OpenShift 6.4 · Red Hat
All versions, or not specified · source: CISA
LF
Logging for Red Hat OpenShift 6 · Red Hat
All versions, or not specified · source: CISA
LF
Logging for Red Hat OpenShift 6.2 · Red Hat
All versions, or not specified · source: CISA
MG
Multicluster Global Hub 1.3.4 · Red Hat
All versions, or not specified · source: CISA
MG
Multicluster Global Hub 1.4.5 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25679
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25679
Mailing List
https://go.dev/cl/752180
Issue Tracking
https://go.dev/issue/77578
Release Notes
https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk
Vendor Advisory
https://pkg.go.dev/vuln/GO-2026-4601
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10065
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10125
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