CVE-2026-25679
Incorrect parsing of IPv6 host literals in net/url
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 6, 2026
- Updated
- Sep 18, 2026
- Reserved
- Feb 5, 2026
Description
url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
- CWE-1286 Improper Validation of Syntactic Correctness of Input
Affected Products
| Product | Versions |
|---|---|
net/urlGo standard library |
|
References
- https://go.dev/cl/752180
- https://go.dev/issue/77578
- https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk
- https://pkg.go.dev/vuln/GO-2026-4601
- https://access.redhat.com/security/cve/CVE-2026-25679vdb-entry
- RHBZ#2445356issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25679.json
- https://access.redhat.com/errata/RHSA-2026:13508vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:41019vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8855vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:54191vendor-advisory
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