Summary
It was discovered that MongoDB incorrectly handled length parameters
in zlib-compressed network messages prior to authentication. An
unauthenticated remote attacker could possibly use this issue to
cause MongoDB to allocate an oversized memory buffer, resulting
in the exposure of sensitive information.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | mongodb | 1:3.6.3-0ubuntu1.4+esm2 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | mongodb | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3+esm1 |
Vulnerabilities 1
-
High 7.5
Zlib compressed protocol header length confusion may allow memory read
Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB…
KEV Dec 29, 2025
References
-
report
https://ubuntu.com/security/CVE-2025-14847