CVE-2025-14847 Affecting mongod-5.0 package, versions <5.0.32-r0
Threat Intelligence
Snyk has reported that there have been attempts or successful attacks targeting this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-MONGOD50-14843256
- published2 Jan 2026
- disclosed19 Dec 2025
Introduced: 19 Dec 2025
CVE-2025-14847 (opens in a new tab)How to fix?
Upgrade Chainguard mongod-5.0 to version 5.0.32-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mongod-5.0 package and not the mongod-5.0 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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 Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Server v5.0 versions prior to 5.0.32, MongoDB Server v4.4 versions prior to 4.4.30, MongoDB Server v4.2 versions greater than or equal to 4.2.0, MongoDB Server v4.0 versions greater than or equal to 4.0.0, and MongoDB Server v3.6 versions greater than or equal to 3.6.0.
References
- https://jira.mongodb.org/browse/SERVER-115508
- http://www.openwall.com/lists/oss-security/2025/12/29/21
- https://www.vicarius.io/vsociety/posts/cve-2025-14847-detection-script-heap-memory-exposure-in-mongodb-server
- https://www.vicarius.io/vsociety/posts/cve-2025-14847-mitigation-script-heap-memory-exposure-in-mongodb-server
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-14847
- https://www.smartkeyss.com/post/mongobleed-pre-auth-memory-disclosure-via-op_compressed-in-mongodb-cve-2025-14847
- https://github.com/Security-Phoenix-demo/mongobleed-exploit-CVE-2025-14847
- https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2025/CVE-2025-14847.yaml
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog