CVE-2026-1858
wget2 Improper Certificate Validation
- State
- Published
- Severity
- 4.8 Medium
- Published
- Apr 29, 2026
- Updated
- Apr 30, 2026
- Reserved
- Feb 3, 2026
Description
wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | tenable |
Weaknesses
- CWE-20 Improper input validation
Affected Products
| Product | Versions |
|---|---|
wget2gnu |
|
References
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