CVE-2026-42186: low-severity vulnerability in openbao
OpenBao's Namespace Deletion May Not Delete Data Properly
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.3epss 0.2%
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.
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Affected products
openbao · openbaoRelated CVEs — openbao
In the same product, most dangerous first.
CVE-2025-59043HIGHOpenBao vulnerable to denial of service via malicious JSON request processingEPSS 0.7%CVE-2026-63132CRITICALOpenBao's Recovery Mode Vulnerable To Token Leakage via Timing AttackEPSS 0.6%CVE-2026-46405MEDIUMOpenBao's Kerberos Auth Method Accumulates Unaccessible TokensEPSS 0.6%CVE-2026-55776MEDIUMOpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key typesEPSS 0.6%CVE-2026-55774LOWOpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808EPSS 0.6%CVE-2026-55770MEDIUMOpenBao: LDAPi ldaputil (wrong escape func)EPSS 0.5%