Bug 2463950 (CVE-2026-1858) - CVE-2026-1858 wget2: wget2: Improper certificate validation allows server impersonation
Summary: CVE-2026-1858 wget2: wget2: Improper certificate validation allows server imp...
Keywords:
Status: NEW
Alias: CVE-2026-1858
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2464100 2464101
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-29 21:01 UTC by OSIDB Bzimport
Modified: 2026-04-30 12:09 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-04-29 21:01:26 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.