CVE-2021-45042: Medium severity hashicorp vault vulnerability

Published Dec 17, 2021
·
Updated

In HashiCorp Vault and Vault Enterprise before 1.7.7, 1.8.x before 1.8.6, and 1.9.x before 1.9.1, clusters using the Integrated Storage backend allowed an authenticated user (with write permissions to a kv secrets engine) to cause a panic and denial of service of the storage backend. The earliest affected version is 1.4.0.

Affected Software

6 affected components
HashiCorp Vault>=1.4.0<1.7.7
HashiCorp Vault>=1.4.0<1.7.7
HashiCorp Vault>=1.8.0<1.8.6
HashiCorp Vault>=1.8.0<1.8.6
HashiCorp Vault=1.9.0
HashiCorp Vault=1.9.0

Event History

Dec 17, 2021
CVE Published
via MITRE·01:38 PM
Data Sourced
via MITRE·01:38 PM
Description
Data Sourced
via NVD·02:15 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2021-45042?

CVE-2021-45042 is a vulnerability in HashiCorp Vault and Vault Enterprise before versions 1.7.7, 1.8.6, and 1.9.1.

2

How does CVE-2021-45042 impact HashiCorp Vault?

CVE-2021-45042 allows an authenticated user with write permissions to a kv secrets engine to cause a panic and denial of service of the storage backend.

3

What is the severity of CVE-2021-45042?

The severity of CVE-2021-45042 is medium with a CVSS score of 4.9.

4

Which versions of HashiCorp Vault are affected?

HashiCorp Vault and Vault Enterprise versions before 1.7.7, 1.8.6, and 1.9.1 are affected.

5

How can I fix CVE-2021-45042?

To fix CVE-2021-45042, upgrade to HashiCorp Vault versions 1.7.7, 1.8.6, or 1.9.1.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203