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CVE-2026-115358— OpenBao before 2.6.3 Sensitive Data Leak in Audit Log via Malformed Parameters

Quick assessment

Affected
openbao openbao
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenBao 在 2.6.3 版本之前存在信息泄露漏洞。攻击者可通过发送格式错误的插件参数，将敏感数据泄露到审计日志中。具体而言，攻击者可提交包含格式错误的 或 字段值的请求，导致包含敏感输入的错误信息被记录在审计日志中。

CVSS 2.0 · Low

Affected Version Matrix 6

VendorProduct Version RangeStatus
openbao openbao < 2.6.3 affected
2.6.3 unaffected
< 2.6.3 affected
2.6.3 unaffected
2.7.0< 2.7.1 affected
2.7.1 unaffected
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I. Basic Information for CVE-2026-115358

Vulnerability Information
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Vulnerability Title
OpenBao before 2.6.3 Sensitive Data Leak in Audit Log via Malformed Parameters
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
openbao openbao 0 ~ 2.6.3 -
openbao openbao 0 ~ 2.6.3 -

II. Public POCs for CVE-2026-115358

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III. Intelligence Information for CVE-2026-115358

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Vendor Advisories for CVE-2026-115358 (2)

Same Patch Batch · openbao · 2026-10-22 · 12 CVEs total

CVE-2026-115365 6.6 MEDIUM OpenBao 2.3.0 before 2.6.3 Incorrect Authorization via Policy Cache Namespace Traversal
CVE-2026-115356 5.4 MEDIUM OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Kubernetes Auth Method Token Renewal After Rev
CVE-2026-115360 4.7 MEDIUM OpenBao before 2.6.3 Open Redirect via OIDC Identity Provider UI
CVE-2026-115361 4.1 MEDIUM OpenBao before 2.6.3 ACL Bypass via Dropped Templated Policy Denial
CVE-2026-115359 3.7 LOW OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Role-Based Rate Limit Quota Bypass via Request
CVE-2026-115363 3.3 LOW OpenBao 2.2.0 before 2.6.4 and 2.7.0 before 2.7.1 ACME EAB MAC Key Disclosure via Sanitize
CVE-2026-115366 2.6 LOW OpenBao 2.3.0 before 2.6.3 Missing Root Namespace Enforcement in Plugin Catalog APIs
CVE-2026-115369 2.2 LOW OpenBao 2.5.0 before 2.6.2 PKI allowed_ip_sans_cidr Bypass via CSR IP SANs
CVE-2026-115364 2.2 LOW OpenBao before 2.6.3 Missing Header Check on Agent/Proxy Quit Endpoints
CVE-2026-115357 2.2 LOW OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Improper Audit Logging of Root Generation and
CVE-2026-115362 2.2 LOW OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Expired AppRole SecretID Authentication Bypass

IV. Related Vulnerabilities

Same product: openbao
Same vendor: openbao
Same weakness: CWE-532

V. Comments for CVE-2026-115358

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