MongoDB high severity flaw allows unauthenticated memory access via Zlib compression flaw
MongoDB reports a high severity flaw CVE-2025-14847 that allows unauthenticated remote attackers to read uninitialized heap memory, potentially exposing credentials, encryption keys, and other sensitive data by exploiting improper validation of Zlib compressed protocol headers through a simple TCP connection. The flaw affects MongoDB versions 3.6 through 8.2.2.
**If you're running MongoDB servers, first check if they are exposed to the internet. If yes this is urgent. Upgrade to the patched versions (8.2.3, 8.0.17, 7.0.28, 6.0.27, 5.0.32, or 4.4.30). Alternatively, isolate from the intenet, disable zlib compression and plan a patch cycle.**
#cybersecurity #infosec #advisory #vulnerability
https://beyondmachines.net/event_details/mongodb-high-severity-flaw-allows-unauthenticated-memory-access-via-zlib-compression-flaw-7-p-x-6-z/gD2P6Ple2L