CVE•Published 2026-05-14•Modified 2026-05-18•0 articles on news•5 live references•NVD data

CVE-2026-42186Openbao · Openbao

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

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

EPSS percentile

—

Weaknesses (CWE)

CWE-212Improper Removal of Sensitive Information Before Storage or Transfer

Description

OpenBao is an open source identity-based secrets management system. Prior to 2.5.3, when OpenBao's initial namespace deletion fails, subsequent retries fail to properly remove all data before marking the namespace as deleted. This can affect any outstanding leases as well as potentially leaving unrelated storage entries around. This vulnerability is fixed in 2.5.3.

Timeline

Published 2026-05-14

Modified 2026-05-18

External references

NVD MITRE Exploit-DB Sploitus 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-2026-42186

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-2026-42186