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CVE-2025-14243— Mirror-registry: openshift mirror registry: user enumeration via authentication error messages

Quick assessment

Affected
Red Hat mirror registry for Red Hat OpenShift
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.

Red Hat OpenShift Mirror Registry是美国红帽（Red Hat）公司的一个轻量级容器镜像仓库服务。 Red Hat OpenShift Mirror Registry存在安全漏洞，该漏洞源于身份验证失败和账户创建期间的不同错误消息，可能导致未经身份验证的远程攻击者枚举有效用户名和电子邮件地址。

CVSS 5.3 · Medium EPSS 0.29% · P19

Possible ATT&CK Techniques 1 AI

T1087 · Account Discovery
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I. Basic Information for CVE-2025-14243

Vulnerability Information
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Vulnerability Title
Mirror-registry: openshift mirror registry: user enumeration via authentication error messages
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to enumerate valid usernames and email addresses via different error messages during authentication failures and account creation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat OpenShift Mirror Registry 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift Mirror Registry是美国红帽（Red Hat）公司的一个轻量级容器镜像仓库服务。 Red Hat OpenShift Mirror Registry存在安全漏洞，该漏洞源于身份验证失败和账户创建期间的不同错误消息，可能导致未经身份验证的远程攻击者枚举有效用户名和电子邮件地址。
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)

II. Public POCs for CVE-2025-14243

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III. Intelligence Information for CVE-2025-14243

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Vendor Advisories for CVE-2025-14243 (1)

Same Patch Batch · Red Hat · 2026-04-08 · 10 CVEs total

CVE-2026-32589 7.4 HIGH Mirror-registry: quay: insecure direct object reference in blobupload
CVE-2026-32590 7.1 HIGH Mirror-registry: remote code execution using pickle deserialization
CVE-2026-2377 6.5 MEDIUM Mirror-registry: quay: quay: server-side request forgery via log export functionality
CVE-2025-57851 6.4 MEDIUM Mce: privilege escalation via excessive /etc/passwd permissions
CVE-2025-57847 6.4 MEDIUM Ansible-automation-platform: privilege escalation via excessive group writable /etc/passwd
CVE-2025-57854 6.4 MEDIUM Osus-operator: privilege escalation via excessive /etc/passwd permissions
CVE-2025-57853 6.4 MEDIUM Web-terminal: privilege escalation via excessive /etc/passwd permissions
CVE-2025-58713 6.4 MEDIUM Rhpam: privilege escalation via excessive /etc/passwd permissions
CVE-2026-32591 5.2 MEDIUM Mirror-registry: quay: server-side request forgery in proxy cache upstream registry config

IV. Related Vulnerabilities

Same product: mirror registry for Red Hat OpenShift
Same vendor: Red Hat
Same weakness: CWE-209

V. Comments for CVE-2025-14243

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