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CVE-2025-52894— OpenBao Vulnerable to Unauthenticated Rekey Operation Cancellation

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是OpenBao开源的一个敏感数据管理软件。 OpenBao 2.3.0之前版本存在输入验证错误漏洞，该漏洞源于允许未经身份验证取消根密钥重新生成操作，可能导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.33% · P26
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I. Basic Information for CVE-2025-52894

Vulnerability Information
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Vulnerability Title
OpenBao Vulnerable to Unauthenticated Rekey Operation Cancellation
Source: CVE Program / CVE List V5
Vulnerability Description
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. OpenBao before v2.3.0 allowed an attacker to perform unauthenticated, unaudited cancellation of root rekey and recovery rekey operations, effecting a denial of service. In OpenBao v2.2.0 and later, manually setting the configuration option `disable_unauthed_rekey_endpoints=true` allows an operator to deny these rarely-used endpoints on global listeners. A patch is available at commit fe75468822a22a88318c6079425357a02ae5b77b. In a future OpenBao release communicated on OpenBao's website, the maintainers will set this to `true` for all users and provide an authenticated alternative. As a workaround, if an active proxy or load balancer sits in front of OpenBao, an operator can deny requests to these endpoints from unauthorized IP ranges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenBao 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenBao是OpenBao开源的一个敏感数据管理软件。 OpenBao 2.3.0之前版本存在输入验证错误漏洞，该漏洞源于允许未经身份验证取消根密钥重新生成操作，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openbao openbao < 2.3.0 -

II. Public POCs for CVE-2025-52894

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III. Intelligence Information for CVE-2025-52894

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IV. Related Vulnerabilities

Same product: openbao
Same vendor: openbao
Same weakness: CWE-20

V. Comments for CVE-2025-52894

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