CVE-2026-30851
Description
A flaw was found in the Caddy server platform, specifically within its reverse proxy module. The 'forward_auth copy_headers' functionality fails to properly strip client-supplied headers. This oversight allows a remote attacker to inject malicious headers, leading to identity injection and potentially enabling privilege escalation. Successful exploitation could grant an attacker elevated access within the system.
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.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
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