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.
Published: 2026-04-29
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

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

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: tenable

Published:

Updated: 2026-04-30T15:22:05.205Z

Reserved: 2026-02-03T20:13:53.718Z

Link: CVE-2026-1858

cve-icon Vulnrichment

Updated: 2026-04-30T13:17:35.751Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-29T21:16:20.513

Modified: 2026-05-05T02:47:29.463

Link: CVE-2026-1858

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-30T03:45:06Z

Weaknesses