MongoBleed (CVE-2025-14847): A Critical MongoDB Memory Leak Vulnerability Hidden for 8 Years
Overview In late 2025, a high-severity memory information disclosure vulnerability that had been lurking in MongoDB for years was finally revealed. Dubbed MongoBleed, this flaw allows unauthenticated attackers to read uninitialized heap memory, potentially exposing sensitive information. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added this vulnerability to
