What is CVE-2026-46405?

CVE-2026-46405 is a medium-severity vulnerability in Openbao, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-08-07.

How severe is CVE-2026-46405?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Openbao

CVE-2026-46405

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, in OpenBao's Kerberos auth method on the `GET` handler, or when an `Authorization: Negotiate` header is supplied, the response is includes a `logic…

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Openbao — versions < 2.5.4

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-46405?: CVE-2026-46405 is a medium-severity vulnerability in Openbao, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-08-07.
How severe is CVE-2026-46405?: Medium severity. CVSS v3 base score is 5.3 out of 10.