OpenBao
CVE-2025-62513
MEDIUM
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessUnknown access vector
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ExploitInteract with OpenBao service
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ExecutionTrigger uncharacterized vulnerability
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ImpactAchieve unconfirmed impact
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A09:2025 - Security Logging & Alerting Failures
ASVS 5.0
V16 - Security Logging and Error Handling Log data sanitization
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| Exploitation Conditions | Exploitation conditions cannot be determined from available data. No CVSS vector is provided, so attack vector (network vs. local), complexity, privilege requirements, and user interaction are all unknown. No description text specifies required configuration, feature, protocol, or deployment mode. What is known: the vulnerability affects OpenBao on Alpine Linux in versions prior to 2.4.3-r0. Authentication requirements, network accessibility, and whether default configurations are affected are not confirmed from current intelligence. Security teams should not assume either best-case or worst-case conditions without additional vendor disclosure. |
| Impact | Risk assessment is severely constrained by data sparsity. No CVSS vector is available, so attack vector, complexity, privilege requirements, user interaction, scope, and impact ratings are all unconfirmed. The EPSS score of 0.05% at the 16th percentile is notably low, suggesting the broader security community and threat intelligence feeds currently assess exploitation as unlikely in the near term. There is no KEV listing and no public exploit code identified, further supporting a lower-urgency posture relative to other vulnerabilities. However, OpenBao serves a highly sensitive role - managing secrets, tokens, certificates, and encryption keys - meaning that even a moderate-severity vulnerability in this product could have outsized impact if exploited in a privileged environment. The actual severity could range from low to critical; without CVSS or CWE, this cannot be determined. Security teams operating OpenBao in sensitive environments should treat the patch as a priority regardless of EPSS due to the product's privileged position in the infrastructure stack. |
| Exploit ScenarioDerived | Without a CVSS vector, CWE, or vulnerability description beyond the patch notice, a realistic exploit scenario cannot be constructed from confirmed data. Generically, a vulnerability in a secrets management platform like OpenBao could allow an attacker - depending on attack vector and privilege requirements - to access, modify, or exfiltrate secrets, tokens, or encryption keys, potentially leading to broad infrastructure compromise. No public exploit code exists at time of analysis. |
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Alert meAnalysisAIv1 – May 27, 2026
OpenBao, an open-source secrets management platform and Linux Foundation-maintained fork of HashiCorp Vault, received a security fix in Alpine Linux package version 2.4.3-r0 addressing CVE-2025-62513. The vulnerability details, attack vector, and impact class are not disclosed in available intelligence, making precise characterization of attacker capability impossible at this time. EPSS scoring of 0.05% (16th percentile) indicates very low observed exploitation probability, and no public exploit code or CISA KEV listing has been identified at time of analysis.
RemediationAI
Upgrade the openbao Alpine Linux package to version 2.4.3-r0 or later using the standard Alpine package manager: 'apk update && apk upgrade openbao'. This is the only confirmed remediation action derivable from available data. No upstream vendor advisory URL, no CVSSv3 vector, and no CWE are available to inform additional compensating controls. Organizations unable to patch immediately should consider restricting network access to OpenBao listeners, enforcing strict audit logging on all secret access operations, and reviewing active tokens and leases for anomalies - standard hardening for secrets management infrastructure. These mitigations do not substitute for patching, as the specific vulnerability class is unknown. Users on non-Alpine distributions should monitor the upstream OpenBao project releases and security advisories for corresponding guidance.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
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Technical ContextAI · show details
OpenBao is a community-driven, open-source fork of HashiCorp Vault, designed for secrets management, encryption-as-a-service, and privileged access management in cloud-native and on-premises environments. It is distributed as an Alpine Linux package under the name 'openbao'. The fix is carried in Alpine package version 2.4.3-r0, suggesting the upstream OpenBao release is version 2.4.3. No CWE is assigned in available data, so the root cause class - whether memory corruption, injection, improper access control, cryptographic weakness, or another category - cannot be determined from current intelligence. No CPE strings were provided to further scope affected products or configurations.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Primary rating from Vendor (vendor:alpine) · only source for this CVE.
CVSS VectorVendor: vendor:alpine
Lifecycle Timeline
1DescriptionCVE.org
Alpine Linux: openbao fixed in 2.4.3-r0
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)CVE.org
Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when con
Timing-based leakage of the single recovery token in OpenBao lets a remote, unauthenticated attacker who can reach the i
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certifi
Vault’s SSH secrets engine did not require the valid_principals list to contain a value by default. Rated high severity
Cross-account IAM role impersonation in OpenBao's auth-aws plugin (versions up to and including 0.1.0) lets an authentic
OpenBao versions prior to 2.6.0 fail to reject syntax-significant characters when templated identity data is substituted
Unauthenticated denial of service in OpenBao 2.4.0 and earlier allows remote attackers to crash the server or exhaust CP
OpenBao is an open source identity-based secrets management system. Rated high severity (CVSS 7.5), this vulnerability i
OpenBao versions before 2.3.0 contain an unauthenticated denial-of-service vulnerability in the root rekey and recovery
Cross-namespace privilege escalation in OpenBao 2.3.0 through 2.6.2 allows an authenticated token holder to attach speci
Vault Community and Vault Enterprise (“Vault”) clusters using Vault’s Integrated Storage backend are vulnerable to a den
A privileged Vault operator with write permissions to the root namespace’s identity endpoint could escalate their own or
NVD
CVE.org
EPSS
GitHub
Exploit-DB