Information disclosure in MongoDB server

1) Improper Handling of Length Parameter Inconsistency

EUVDB-ID: #VU120254

Risk: High

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2025-14847

CWE-ID: CWE-130 - Improper Handling of Length Parameter Inconsistency

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to mismatched length fields in Zlib compressed protocol headers. A remote non-authenticated client can read parts of uninitialized heap memory and gain access to sensitive information. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MongoDB: 4.4.0 - 8.2.2

CPE2.3

• cpe:2.3:a:mongodb:mongodb:4.4.29:*:*:*:*:*:*:*
• cpe:2.3:a:mongodb:mongodb:5.0.31:*:*:*:*:*:*:*
• cpe:2.3:a:mongodb:mongodb:6.0.26:*:*:*:*:*:*:*
• cpe:2.3:a:mongodb:mongodb:7.0.27:*:*:*:*:*:*:*
• cpe:2.3:a:mongodb:mongodb:8.0.16:*:*:*:*:*:*:*
• cpe:2.3:a:mongodb:mongodb:8.2.2:*:*:*:*:*:*:*

External links

https://jira.mongodb.org/browse/SERVER-115508

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.