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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://www.tenable.com/security/research/tra-2026-37 |
|
History
Tue, 05 May 2026 03:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:gnu:wget2:*:*:*:*:*:*:*:* |
Thu, 30 Apr 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 29 Apr 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Gnu
Gnu wget2 |
|
| Vendors & Products |
Gnu
Gnu wget2 |
Wed, 29 Apr 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | wget2 Improper Certificate Validation | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: tenable
Published: 2026-04-29T20:15:50.866Z
Updated: 2026-04-30T15:22:05.205Z
Reserved: 2026-02-03T20:13:53.718Z
Link: CVE-2026-1858
Updated: 2026-04-30T13:17:35.751Z
Status : Analyzed
Published: 2026-04-29T21:16:20.513
Modified: 2026-05-05T02:47:29.463
Link: CVE-2026-1858
No data.
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