CVE-2026-101280
Description
A flaw was found in OpenDMARC. The opendmarc_policy_query_dmarc function improperly processes multi-record Domain-based Message Authentication, Reporting, and Conformance (DMARC) policy responses, allowing a remote attacker to bypass authentication checks. An attacker can exploit this issue to spoof sender identities and deliver unauthorized email messages that circumvent domain policy enforcement.
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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