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OpenBao CVE-2025-62513

MEDIUM
Insertion of Sensitive Information into Log File (CWE-532)
N/A vendor:alpine
5.7
CVSS 4.0 · Vendor: vendor:alpine
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Unknown access vector
  2. Exploit
    Interact with OpenBao service
  3. Execution
    Trigger uncharacterized vulnerability
  4. Impact
    Achieve 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
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.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – 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

go github.com/openbao/openbao fix: 0.0.0-20251022165510-cc2c476bac66

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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

Vendor (vendor:alpine) PRIMARY 5.7 MEDIUM
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

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
Passive
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
CVSS changed
Oct 19, 2026 - 16:23 NVD
5.7 (MEDIUM)

DescriptionCVE.org

Alpine Linux: openbao fixed in 2.4.3-r0

Threat Intelligence Overview

EPSS Score
0.0%
Top 84% exploitable
Data Quality
3 sources
Confidence: Low

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.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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

cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*
CVE-2024-2048 CRITICAL
9.8 Mar 04

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when con

CVE-2026-63132 CRITICAL
9.2 Sep 22

Timing-based leakage of the single recovery token in OpenBao lets a remote, unauthenticated attacker who can reach the i

CVE-2025-54997 CRITICAL
9.1 Aug 09

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certifi

CVE-2024-7594 HIGH
8.8 Sep 26

Vault’s SSH secrets engine did not require the valid_principals list to contain a value by default. Rated high severity

CVE-2025-59048 HIGH
8.1 Oct 23

Cross-account IAM role impersonation in OpenBao's auth-aws plugin (versions up to and including 0.1.0) lets an authentic

CVE-2026-71543 HIGH
7.5 Sep 21

OpenBao versions prior to 2.6.0 fail to reject syntax-significant characters when templated identity data is substituted

CVE-2025-59043 HIGH
7.5

Unauthenticated denial of service in OpenBao 2.4.0 and earlier allows remote attackers to crash the server or exhaust CP

CVE-2025-64761 HIGH
7.5 Nov 25

OpenBao is an open source identity-based secrets management system. Rated high severity (CVSS 7.5), this vulnerability i

CVE-2025-52894 HIGH
7.5 Jun 25

OpenBao versions before 2.3.0 contain an unauthenticated denial-of-service vulnerability in the root rekey and recovery

CVE-2026-115365 HIGH
7.5 Oct 22

Cross-namespace privilege escalation in OpenBao 2.3.0 through 2.6.2 allows an authenticated token holder to attach speci

CVE-2024-8185 HIGH
7.5 Oct 31

Vault Community and Vault Enterprise (“Vault”) clusters using Vault’s Integrated Storage backend are vulnerable to a den

CVE-2024-9180 HIGH
7.2 Oct 10

A privileged Vault operator with write permissions to the root namespace’s identity endpoint could escalate their own or

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