CVE-2026-115356: medium-severity vulnerability in openbao
OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Kubernetes Auth Method Token Renewal After Revocation
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not verify, when renewing a token issued by the Kubernetes Auth method, that the service account token originally used to authenticate is still valid. An authenticated attacker can keep renewing such tokens to persist access after the Kubernetes service account has been deleted.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/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%