Authenticated KMS request forgery via CRLF injection in GCP key identifier strings (MongoDB libmongocrypt)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mongodb
- NVD status
- Analyzed
Description
An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and defeating client-side encryption.
Weaknesses (CWE)
- CWE-93 — Improper Neutralization of CRLF Sequences
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 5.7 | CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | mongodb |
| CVSS 3.1 | MEDIUM 4.2 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N | mongodb |
| CVSS 4.0 | MEDIUM 5.7 | CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/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 | MEDIUM 4.2 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N | NVD · cna@mongodb.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-70516
- GCVE · GCVE-0-2026-84962
CERT-FR advisories
- CERTFR-2026-AVI-1123 — Multiples vulnérabilités dans MongoDB · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mongodb:libmongocrypt:*:*:*:*:*:*:*:*< 1.20.2
Affected products
| Product | Versions |
|---|---|
| MongoDB · libmongocrypt | affected 0 < 1.20.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| 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 |