CVE-2026-103884— Keycloak-services: keycloak-services: path traversal in x.509 crl distribution point allows arbitrary local file read
一分钟漏洞结论
影响对象
Red Hat Red Hat Build of Keycloak
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
在 Keycloak 的 X.509 客户端证书认证器中发现了一个漏洞。当启用 CRL（证书吊销列表）分发点检查时，服务器未能正确验证客户端证书中提供的文件路径。攻击者可以提供一个特制的证书，诱导服务器尝试从本地系统读取敏感文件，或通过加载超大文件来耗尽内存，从而导致信息泄露或系统崩溃。
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一、 漏洞 CVE-2026-103884 基础信息
漏洞信息
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Vulnerability Title
Keycloak-services: keycloak-services: path traversal in x.509 crl distribution point allows arbitrary local file read
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the X.509 client certificate authenticator of Keycloak. When CRL Distribution Point checking is enabled, the server fails to properly validate the file paths provided in a client certificate. An attacker can provide a specially crafted certificate that causes the server to attempt to read sensitive files from the local system or exhaust memory by loading extremely large files, potentially leading to information disclosure or a system crash.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak | - |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat Build of Keycloak | - |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat Single Sign-On 7 | - |
cpe:/a:redhat:red_hat_single_sign_on:7
|
|
二、漏洞 CVE-2026-103884 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-103884 其他参考 (1)
同批安全公告 · Red Hat · 2026-10-01 · 共 16 条
| CVE-2026-96658 | 9.9 CRITICAL | Foreman: safemode bypass leading to rce |
| CVE-2026-96659 | 9.1 CRITICAL | Foreman: excessive permissions for viewer role on preview |
| CVE-2026-12405 | 8.8 HIGH | Rubygem-foreman_remote_execution: command injection in job invocations via effective_user |
| CVE-2026-12541 | 8.2 HIGH | Foreman: command injection in foreman-rake database tasks |
| CVE-2026-12540 | 8.2 HIGH | Foreman: command injection in foreman-rake errors:fetch_log via request_id parameter |
| CVE-2026-12544 | 7.7 HIGH | Foreman: ssti and insecure deserialization in foreman-rake configuration |
| CVE-2026-12423 | 7.5 HIGH | Foreman: unauthenticated information disclosure via provisioning token validation flaw |
| CVE-2026-96577 | 7.1 HIGH | Oc-mirror 4.21 缓存注册表未授权访问漏洞 |
| CVE-2026-12545 | 6.7 MEDIUM | Rubygem-hammer_cli: command injection via insecure editor invocation |
| CVE-2026-56097 | 6.5 MEDIUM | Rubygem-katello: sql injection in registry proxy via labels |
| CVE-2026-83589 | 6.1 MEDIUM | Oauth-proxy 登录后重定向开放重定向漏洞 |
| CVE-2026-103754 | 5.9 MEDIUM | Ansible-runner 路径遍历与符号链接逃逸漏洞 |
| CVE-2026-103641 | 5.5 MEDIUM | Gegl 0.4 辐射HDR解码器越界读取漏洞 |
| CVE-2026-12542 | 5.3 MEDIUM | Foreman: command injection in foreman-tail |
| CVE-2026-56098 | 4.3 MEDIUM | Rubygem-katello: improper authorization logic allows resource enumeration |
IV. Related Vulnerabilities
Same product: Red Hat Build of Keycloak
Same vendor: Red Hat
-
CVE-2026-56098
Rubygem-katello: improper authorization logic allows resourc -
CVE-2026-12545
Rubygem-hammer_cli: command injection via insecure editor in -
CVE-2026-12542
Foreman: command injection in foreman-tail -
CVE-2026-56097
Rubygem-katello: sql injection in registry proxy via labels -
CVE-2026-96659
Foreman: excessive permissions for viewer role on preview
Same weakness: CWE-22
-
CVE-2026-101889
Prime Mover < 2.2.1 Path Traversal via wprime-config.json -
CVE-2026-101888
Prime Mover < 2.2.1 Zip Slip Path Traversal File Write -
CVE-2026-94620
Classroom 50 vulnerable to arbitrary file overwrite on the t -
CVE-2026-95588
WordPress AcyMailing插件11.0.5任意文件删除漏洞 -
CVE-2024-58388
夏普多功能打印机本地文件包含漏洞
V. Comments for CVE-2026-103884
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