CVE-2021-3024

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-01 · updated 2026-06-17

Description

HashiCorp Vault and Vault Enterprise disclosed the internal IP address of the Vault node when responding to some invalid, unauthenticated HTTP requests. Fixed in 1.6.2 & 1.5.7.

Affected products

HashiCorp Vault: before 1.5.7; from 1.6.0 before 1.6.2 — fixed in 1.5.7, 1.6.2

How to fix

Upgrade to a fixed version: HashiCorp Vault 1.5.7, 1.6.2. Check the vendor advisory for mitigations.

References

https://discuss.hashicorp.com/t/hcsec-2021-02-vault-api-endpoint-exposed-internal-ip-address-without-authentication/20334
https://security.gentoo.org/glsa/202207-01
https://discuss.hashicorp.com/t/hcsec-2021-02-vault-api-endpoint-exposed-internal-ip-address-without-authentication/20334
https://security.gentoo.org/glsa/202207-01

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