Record summary

CVE-2026-5052 has a selected CVSS score of 5.3 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Apr 17, 2026 · Source: CVE List

Affected products and versions

3
ProductSourceVersion rangeStatus

Default status: unaffected

CVE List1.15.0 to < 2.0.0affected

Default status: unaffected

CVE List1.15.0 to < 2.0.0affected

github.com/hashicorp/vault

Browse Go / github.com/hashicorp/vault
GitHub Advisory1.14.0 to ≤ 1.21.4affected

References

4