Timing Attack Affecting github.com/hashicorp/vault/builtin/logical/pki package, versions <2.0.3
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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- published24 Sept 2026
- disclosed22 Sept 2026
- creditUnknown
Introduced: 22 Sep 2026
NewCVE-2026-63132 Â (opens in a new tab)How to fix?
Upgrade github.com/hashicorp/vault/builtin/logical/pki to version 2.0.3 or higher.
Overview
Affected versions of this package are vulnerable to Timing Attack via the recovery token comparison in handleLogicalRecovery in http/logical.go. An attacker can extract the single recovery token and use it to perform privileged recovery-mode API operations by repeatedly sending candidate tokens and measuring response timing. In recovery mode, that token gates access to underlying storage operations, so leaking it lets the attacker read or modify data on the OpenBao instance.