A essential safety vulnerability, tracked as CVE-2025-14847, that would enable attackers to extract uninitialized heap reminiscence from database servers with out authentication.
The flaw resides in MongoDB’s zlib compression implementation and impacts a number of variations of the database platform.
The vulnerability permits client-side exploitation of the MongoDB Server’s zlib implementation. Probably exposing delicate information saved in uninitialized heap reminiscence.
What makes this flaw notably harmful is that attackers can exploit it with out authenticating to the server, considerably reducing the barrier for malicious actors.
The vulnerability impacts a variety of MongoDB variations, spanning a number of main releases:
ProductAffected VersionsMongoDB8.2.0 via 8.2.2MongoDB8.0.0 via 8.0.16MongoDB7.0.0 via 7.0.26MongoDB6.0.0 via 6.0.26MongoDB5.0.0 via 5.0.31MongoDB4.4.0 via 4.4.29MongoDBAll variations of 4.2MongoDBAll variations of 4.0MongoDBAll variations of three.6
MongoDB strongly recommends upgrading to the patched variations 8.2.3, 8.0.17, 7.0.28, 6.0.27, 5.0.32, or 4.4.30.
For organizations that can’t improve instantly, MongoDB recommends a brief workaround.
Disable zlib compression by configuring mongod or mongos to omit zlib within the networkMessageCompressors or internet. Compression/compressor settings: Use protected options equivalent to Snappy or Zstd, or flip off compression.
Exposing uninitialized heap reminiscence can result in data disclosure. Probably revealing delicate database contents, cryptographic keys, or different confidential information residing in server reminiscence.
Safety groups ought to prioritize patching MongoDB installations instantly to forestall potential information breaches.
Observe us on Google Information, LinkedIn, and X for each day cybersecurity updates. Contact us to characteristic your tales.
