Allocation of Resources Without Limits or Throttling Affecting github.com/openbao/openbao/vault package, versions <2.5.4
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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- published30 Jun 2026
- disclosed28 May 2026
- creditUnknown
Introduced: 28 May 2026
CVE-2026-46405 Â (opens in a new tab)How to fix?
Upgrade github.com/openbao/openbao/vault to version 2.5.4 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the GET handler of the Kerberos authentication method or when an Authorization: Negotiate header is supplied. An attacker can cause excessive storage consumption by repeatedly triggering the creation of inaccessible tokens that accumulate in the system.
Workaround
This vulnerability can be mitigated by setting a rate limit quota to restrict the creation of these paths.