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OpenBao CVE-2025-62705

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 prerequisite access
  2. Exploit
    Trigger uncharacterized vulnerability in OpenBao
  3. 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 was provided, and the CVE description contains no technical details about required configuration, authentication level, network accessibility, or affected feature. Authentication requirements, attack vector (network vs. local), and complexity are all unknown. The sole confirmed fact is that Alpine Linux openbao packages prior to 2.4.3-r0 contain the vulnerable code. Security teams cannot reliably assess exposure without a published CVSS vector or vendor technical advisory.

Impact

Risk assessment is severely constrained by missing data. No CVSS vector has been published, meaning attack vector, complexity, required privileges, user interaction, and scope are all unknown. The EPSS score of 0.05% at the 16th percentile indicates a low probability of exploitation in the near term, consistent with a vulnerability that lacks public exploit code and has not attracted broad attacker attention. No KEV listing exists. The absence of a CVSS score and description is itself a risk signal - it may indicate the vulnerability is still being triaged, the vendor chose minimal disclosure, or the severity is low. Security teams should not deprioritize solely based on EPSS given the lack of CVSS context, but current signals do not support treating this as an urgent priority.

Exploit ScenarioDerived

No exploit scenario can be constructed with confidence because the vulnerability description, attack vector, and affected component within OpenBao are not disclosed. No public exploit code or proof-of-concept has been identified 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, the open-source secrets management fork of HashiCorp Vault, received a security fix in Alpine Linux package version 2.4.3-r0. The nature of the underlying vulnerability is not disclosed in available intelligence sources - no CVE description, CVSS vector, or CWE has been published. With an EPSS score of 0.05% (16th percentile), exploitation probability is very low at time of analysis, and no public exploit or CISA KEV listing exists.

RemediationAI

Upgrade the Alpine Linux openbao package to version 2.4.3-r0 or later using the standard Alpine package manager: 'apk upgrade openbao'. This is the only confirmed fix identified at time of analysis. No upstream OpenBao release version is independently confirmed from available data; administrators running OpenBao outside Alpine Linux should consult the OpenBao project's own security advisories and GitHub releases to determine the corresponding patched upstream version. No workarounds or compensating controls are documented because the vulnerability's nature (attack vector, affected component, exploitation mechanism) is unknown.

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 an open-source fork of HashiCorp Vault maintained by the Linux Foundation, designed for secrets management, encryption-as-a-service, and privileged access control. The fix was delivered as Alpine Linux package version 2.4.3-r0. No CWE classification is available, making it impossible to characterize the root cause class (e.g., injection, memory corruption, access control bypass). No CPE string was provided; the affected component is inferred to be the openbao Alpine Linux package prior to 2.4.3-r0.

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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 - 13:23 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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