CVE-2026-9751: MongoDB Server · Sensitive Data in Logs
Affects MongoDB ServerSource CVE Database V5
Not known to be exploited · CVSS 6.8 Medium · fixed in 8.3.3 : update MongoDB Server when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8.3.3, 8.2.10, 8.0.24 +1
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade MongoDB Server to 8.3.3, 8.2.10, 8.0.24 or 7.0.35.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, it is recommended to restrict access to MongoDB log files to trusted administrators only and avoid setting the ldapQueryPassword parameter at runtime if possible.
Description
CVE-2026-9751 is a vulnerability in MongoDB Server where the ldapQueryPassword parameter, when set via the runtime setParameter command, is logged in plain text to the mongod.log file. This exposure of sensitive information in logs can lead to unauthorized disclosure of LDAP passwords. The issue affects MongoDB Server versions 7.0.0, 8.0.0, 8.2.0, and 8.3.0. The vulnerability has a medium severity with a CVSS 4.0 base score of 6.8. There are no known exploits in the wild at this time.