Description

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

INFO

Published Date :

2026-04-17T02:55:25.080Z

Last Modified :

2026-04-17T02:55:25.080Z

Source :

HashiCorp
AFFECTED PRODUCTS

The following products are affected by CVE-2026-5052 vulnerability.

Vendors Products
Hashicorp
  • Vault
  • Vault Enterprise
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-5052.

URL Resource
https://discuss.hashicorp.com/t/hcsec-2026-06-vault-vulnerable-to-server-side-request-forgery-in-acme-challenge-validation-via-attacker-controlled-dns/77343 cve-icon cve-icon
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