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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://www.tenable.com/security/research/tra-2026-37 |
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History
Wed, 29 Apr 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Gnu
Gnu wget2 |
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| 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
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Projects
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Status: PUBLISHED
Assigner: tenable
Published:
Updated: 2026-04-30T15:22:05.205Z
Reserved: 2026-02-03T20:13:53.718Z
Link: CVE-2026-1858
No data.
Status : Awaiting Analysis
Published: 2026-04-29T21:16:20.513
Modified: 2026-04-30T15:13:14.230
Link: CVE-2026-1858
No data.
OpenCVE Enrichment
Updated: 2026-04-30T03:45:06Z
Weaknesses