# CVE-2026-84962: Authenticated KMS request forgery via CRLF injection in GCP key identifier strings

> CVE-2026-84962: Authenticated KMS request forgery via CRLF injection in GCP key identifier strings. CVSS 4.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-84962
Last updated: 2026-09-17T14:00:40Z

- Published: 2026-09-03 15:03 UTC · Updated: 2026-09-17 14:00 UTC · Assigner: mongodb
- CVSS: 4.2 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
- EPSS: 0.19%, 8th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-93

## 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.

## Affected vendors and products

- MongoDB: libmongocrypt

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-84962)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-84962)
- [https://jira.mongodb.org/browse/MONGOCRYPT-960](https://jira.mongodb.org/browse/MONGOCRYPT-960)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-84962 · Markdown: https://rewindex.com/cve/CVE-2026-84962.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-84962 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:37.670Z