Abstract Security’s ASTRO threat research team has published an advisory on a newly disclosed high-severity MongoDB Server vulnerability, CVE-2025-14847, also known as “MongoBleed.” The flaw can allow unauthenticated remote attackers to trigger memory disclosure when certain compression settings are enabled, potentially exposing sensitive data such as credentials, tokens, and cached information.
The advisory outlines affected MongoDB versions, notes cases where patches may not be available, and provides practical guidance on detection and mitigation for environments where immediate upgrades are not possible. The disclosure underscores the growing need for advanced security analytics and observability as organizations rely more heavily on complex cloud and database infrastructure.