Read the docs
TI-2026-58385 Aliases CVE-2026-84962

Authenticated KMS request forgery via CRLF injection in GCP key identifier strings

Priority LOW 25CWE-93Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Passive
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00185 8th percentileScored 2026-11-07
Fix Partial libmongocrypt (MongoDB): 1.20.2Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MongoDBlibmongocryptbefore 1.20.21.20.2Patch availableCNA
  • libmongocrypt VendorMongoDB Affected before 1.20.2 Fixed in 1.20.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:libmongocrypt:*:*:*:*:*:*:*:*before 1.20.2VulnerableMongoDB
  • cpe:2.3:a:mongodb:libmongocrypt:*:*:*:*:*:*:*:* Versions before 1.20.2 Vulnerable ·MongoDB

Remediation

  • Fix · CNA libmongocrypt (MongoDB) Fixed in 1.20.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
OpenShift PipelinesAffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84962

References

Advisory 1

  • TI-2026-69711 Memory corruption in MongoDB libmongocrypt with duplicate masterKey CVSS 4.0HIGH 8.7
  • TI-2026-58394 Persistent client crash loop via undersized FLE2 insert-update ciphertext in decryption path CVSS 4.0HIGH 7.1
  • TI-2026-56244 Cross-tenant database retargeting via dot/NUL injection in namespace strings in libmongocrypt CVSS 4.0LOW 2.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences