CVE-2026-126309

OpenBao before 2.6.5 and 2.7.2 Path Traversal in Transit Key Import

OpenBao before 2.6.5 and 2.7.2 contains a path traversal vulnerability in Transit key import that allows authenticated attackers to bypass name restrictions in ACL policies. Attackers limited by a required_parameters name constraint can craft traversal sequences during import to write key material under arbitrary Transit key names.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-126310

OpenBao before 2.6.5 and 2.7.2 OIDC Provider Authentication Bypass via Client Credentials

OpenBao before 2.6.5 and 2.7.2 contains an authentication bypass vulnerability that allows unauthenticated callers to obtain OIDC ID tokens by abusing public clients with client_credentials enabled. Attackers who know a public client's client_id can request tokens from the identity/oidc/provider/<name>/token endpoint to impersonate the client without any secret.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-126311

OpenBao before 2.6.5 and 2.7.2 Wildcard Principals in SSH Certificates via Identity Templates

OpenBao before 2.6.5 and 2.7.x before 2.7.2 does not neutralize wildcard characters in SSH certificate principals rendered from unvalidated external token metadata via identity templates in the SSH secrets engine. Attackers controlling that metadata, typically through a compromised identity provider, can inject '*' to obtain SSH certificates valid for multiple hosts or users.

CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-126312

OpenBao before 2.6.5 and 2.7.2 ACL Bypass via Non-Canonical Plugin Paths

OpenBao before 2.6.5 and 2.7.x before 2.7.2, and the openbao-plugins LDAP and RADIUS auth plugins before 0.2.0, contain an ACL bypass in the AppRole, Cert, LDAP, and RADIUS auth methods caused by implicit path canonicalization. Authenticated attackers can request non-canonical paths for AppRole Role IDs, Cert CRLs, LDAP groups and users, or RADIUS users to evade ACL deny rules.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115365

OpenBao 2.3.0 before 2.6.3 Incorrect Authorization via Policy Cache Namespace Traversal

OpenBao from 2.3.0 before 2.6.3 contains an incorrect authorization vulnerability in its ACL policy cache that allows tokens to reference policies from arbitrary namespaces using specially crafted policy names. Attackers holding such tokens can gain capabilities of cached policies in other namespaces, including the root namespace, to act across namespace boundaries.

CVSS 4.0 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115361

OpenBao before 2.6.3 ACL Bypass via Dropped Templated Policy Denial

OpenBao before 2.6.3 contains an ACL bypass vulnerability that silently drops explicit deny rules based on forbidden identity metadata templates within wildcard grants. Attackers whose identity metadata contains wildcard or path segments can access paths that should be denied within the broader wildcard-granted scope.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115357

OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Improper Audit Logging of Root Generation and Rekey Responses

OpenBao before 2.6.4 and 2.7.x before 2.7.1 fails to write response audit entries for the unauthenticated sys/generate-root, sys/rekey, and sys/rekey-recovery-key endpoints when request audit logging succeeds but response audit logging fails. An attacker using these endpoints can complete root token generation or rekey operations without a corresponding response audit record, hindering forensic detection.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115369

OpenBao 2.5.0 before 2.6.2 PKI allowed_ip_sans_cidr Bypass via CSR IP SANs

OpenBao from 2.5.0 before 2.6.2 fails to enforce the PKI role allowed_ip_sans_cidr restriction on IP SANs taken from a CSR when use_csr_sans is enabled. Authenticated callers with sign permission can submit a CSR with an out-of-range IP SAN to pki/sign/<role> and obtain CA-signed certificates for unauthorized IPs.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115363

OpenBao 2.2.0 before 2.6.4 and 2.7.0 before 2.7.1 ACME EAB MAC Key Disclosure via Sanitized Configuration

OpenBao 2.2.0 before 2.6.4 and 2.7.0 before 2.7.1 contains an information disclosure vulnerability that exposes the tls_acme_eab_mac_key value through the sys/config/state/sanitized endpoint. Callers of the sanitized configuration endpoint can retrieve the ACME External Account Binding MAC key used for TLS listener certificates, letting them bind to the operator's ACME account.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115359

OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Role-Based Rate Limit Quota Bypass via Request Parsing

OpenBao before 2.6.4 and 2.7.x before 2.7.1 contains a flaw in its rate limit quota subsystem where role resolution fails for requests with form-encoded bodies or forwarded certificates, so quota rules scoped to backend-specific roles are not enforced. Valid callers can repeatedly issue tokens without consuming the configured role-based rate limit budget.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115362

OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Expired AppRole SecretID Authentication Bypass

OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not check Secret ID expiration at use in the AppRole auth method, leaving expired Secret IDs valid until the periodic tidy removes them. An attacker holding an expired, untidied Secret ID can log in and gain access beyond its TTL.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115358

OpenBao before 2.6.3 Sensitive Data Leak in Audit Log via Malformed Parameters

OpenBao before 2.6.3 contains an information disclosure vulnerability that allows attackers to leak sensitive data into audit logs by sending malformed plugin parameters. Attackers can submit requests with malformed TypeKVPair or TypeHeader field values, causing error messages containing sensitive input to be recorded in audit logs.

CVSS 4.0 · 2 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115366

OpenBao 2.3.0 before 2.6.3 Missing Root Namespace Enforcement in Plugin Catalog APIs

OpenBao from 2.3.0 before 2.6.3 contains an improper authorization vulnerability that allows privileged child-namespace tokens to modify plugin registrations because /v1/sys/plugins/catalog/* is not restricted to the root namespace. Attackers can remove existing registrations, create invalid ones, or register installed plugins through a child namespace's sys/ mount, causing denial of service.

CVSS 4.0 · 2 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115360

OpenBao before 2.6.3 Open Redirect via OIDC Identity Provider UI

OpenBao before 2.6.3 contains an open redirect vulnerability in the UI's OIDC identity provider that affects users not authenticated to OpenBao. Attackers can craft OIDC links that redirect unauthenticated users to attacker-controlled destinations, enabling phishing or credential theft.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115364

OpenBao before 2.6.3 Missing Header Check on Agent/Proxy Quit Endpoints

OpenBao before 2.6.3 contains a missing authorization check that allows attackers to stop Agent and Proxy services by omitting the X-Vault-Header. When require_request_header is enabled, attackers can send requests via server-side request forgery to /agent/v1/quit or /proxy/v1/quit to shut down these services.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-115356

OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Kubernetes Auth Method Token Renewal After Revocation

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 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-71543

OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated policies, asterisks, plus signs, and slashes could alter path matching. In PKI allowed_uri_sans_template and allowed_domains policies, an asterisk could broaden certificate issuance to unauthorized domains. In SSH allowed_users and allowed_domains policies, a comma could add unauthorized principals. Exploitation requires a deployment to use templated policy data that users can freely modify; templates based on the randomly generated identity.entity.id value are not affected. This could allow privilege escalation, unauthorized access, and unauthorized certificate issuance. This issue is fixed in version 2.6.0.

CVSS 4.0 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-63131

OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. This issue is fixed in version 2.6.0.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-63132

OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token. The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao

CVE-2026-77285

OpenBao Agent Writes Secrets to Stdout

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao Agent's exec rendering mode could write secrets from env_template to standard output when command/agent/exec/exec.go re-created the template runner after repeated rendering failures, primarily after num_retries was reached. A process supervisor, log collector, or local user able to read that output could obtain the rendered secret values. This issue is fixed in version 2.6.0.

CVSS 4.0 · 2.4 Low EPSS < 1% KEV · Not listed

Vendors

Openbao

Products

Openbao