CVE-2026-105818 | BDVDB-2026-384284 Detail

Description#

Vault's PKI secrets engine ACME server did not restrict certificate identities that ACME challenges do not validate when issuing certificates under the default directory policy. This may allow an ACME client to obtain a certificate containing unverified identity claims, potentially enabling impersonation toward systems that trust certificates issued by the affected Vault PKI mount. This vulnerability (CVE-2026-105818) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.

Impact#

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Exploit#

History#

1. Version 12026-10-07Record published in the CVE List.
2. Version 22026-10-08Most recent update recorded in the CVE List.