CVE-2026-1858
Description
A flaw was found in wget2. This vulnerability allows a remote attacker, who has compromised a server certificate, to reuse it for Transport Layer Security (TLS) server authentication, even if the certificate was issued for a different purpose. This improper validation enables the attacker to impersonate a legitimate server, potentially leading to the disclosure of sensitive information or the compromise of data integrity.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Integrity,Authentication
Technical Impact: Bypass Protection Mechanism; Gain Privileges or Assume Identity
When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. The product might connect to a malicious host while believing it is a trusted host, or the product might be deceived into accepting spoofed data that appears to originate from a trusted host.
Frequently Asked Questions
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