CVE-2026-27824
Description
A flaw was found in calibre, an e-book manager. A remote attacker can bypass the brute-force protection mechanism in the calibre Content Server by manipulating the X-Forwarded-For header. This vulnerability allows attackers to circumvent IP-based bans, making the server susceptible to credential stuffing and password guessing attacks, potentially leading to unauthorized access.
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)
Access Control
Technical Impact: Bypass Protection Mechanism; Gain Privileges or Assume Identity
This weakness can allow an attacker to access resources which are not otherwise accessible without proper authentication.
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