Zlib compressed protocol header length confusion may allow memory read (MongoDB Inc. MongoDB Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 83.22 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mongodb
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-130 — Improper Handling of Length Parameter Inconsistency
References
- https://jira.mongodb.org/browse/SERVER-115508
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-14847
- 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.smartkeyss.com/post/mongobleed-pre-auth-memory-disclosure-via-op_compressed-in-mongodb-cve-2025-14847
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 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 | mongodb |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | mongodb |
| CVSS 4.0 | HIGH 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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · cna@mongodb.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · cna@mongodb.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-204529
- GCVE · GCVE-0-2025-14847
CERT-FR advisories
- CERTFR-2026-AVI-0395 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0224 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0102 — Vulnérabilité dans Splunk Enterprise · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0087 — Vulnérabilité dans les produits Belden · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0061 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1134 — Multiples vulnérabilités dans MongoDB Server · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 3.6.0 < 4.4.30cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 5.0.0 < 5.0.32cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*≥ 6.0.0 < 6.0.27cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*≥ 7.0.0 < 7.0.28cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*≥ 8.0.0 < 8.0.17cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*≥ 8.2.0 < 8.2.3
Affected products
| Product | Versions |
|---|---|
| MongoDB Inc. · MongoDB Server | affected 8.2 < 8.2.3 ; affected 8.0 < 8.0.17 ; affected 7.0 < 7.0.28 ; affected 6.0 < 6.0.27 ; affected 5.0 < 5.0.32 ; affected 4.4 < 4.4.30 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |