CVE-2026-105818 Affecting vault-doc package, versions <2.1.2-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-VAULTDOC-21177794
- published18 Oct 2026
- disclosed7 Oct 2026
Introduced: 7 Oct 2026
NewCVE-2026-105818 (opens in a new tab)How to fix?
Upgrade Minimos:latest vault-doc to version 2.1.2-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream vault-doc package and not the vault-doc package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-105818
- https://github.com/advisories/GHSA-fxww-hx7x-vxpc
- https://osv.dev/vulnerability/MINI-hgj5-77cw-7mq2
- https://osv.dev/vulnerability/CVE-2026-105818
- https://discuss.hashicorp.com/t/hcsec-2026-40-vault-pki-acme-default-directory-policy-may-issue-certificates-with-unverified-identities/77812