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CVE-2021-45042

MEDIUM
4.9
CVSS Score
Published: December 17, 2021 at 01:38 PM UTC
Updated: June 17, 2026 at 04:13 AM UTC
1 product affected across 1 vendorVault

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Severity
MEDIUM4.9
Exploit prediction
EPSS 1%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vault· Hashicorp
95%
1.4.0 ≤ v < 1.7.71.8.0 ≤ v < 1.8.61.9.0
Affected range stops below 1.7.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.6, so it looks safe — our inference, not a vendor statement

References (3)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec2-21-33-vault-s-kv-secrets-engine-with-integrated-storage-exposed-to-authenticated-denial-of-service/33157
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202207-01
x_refsource_MISCProductVendor Advisory
Source: [email protected]
https://www.hashicorp.com/blog/category/vault

CVSS

4.9MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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