CVE•Published 2026-04-21•Modified 2026-04-24•0 articles on news•5 live references•NVD data

CVE-2026-40264Openbao · Openbao

Vulnerability data via NVD (ingested)

CVSS v3.1

2.7

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

EPSS percentile

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Weaknesses (CWE)

CWE-1259Improper Restriction of Security Token Assignment

Description

OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.

Timeline

Published 2026-04-21

Modified 2026-04-24

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-40264

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openbao Openbao"

All exposed Openbao Openbao instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Openbao"

HTTP body or banner mentions "Openbao" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-40264