Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-31492— mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data

Quick assessment

Affected
OpenIDC mod_auth_openidc
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.

mod_auth_openidc是OpenIDC开源的一款Apache HTTP服务器的身份验证/授权模块。 mod_auth_openidc存在信息泄露漏洞，该漏洞源于错误导致受保护内容泄露给未认证用户。

AI Predicted 8.1 Difficulty: Easy EPSS 0.57% · P45
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-31492

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data
Source: CVE Program / CVE List V5
Vulnerability Description
mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.16.11, a bug in a mod_auth_openidc results in disclosure of protected content to unauthenticated users. The conditions for disclosure are an OIDCProviderAuthRequestMethod POST, a valid account, and there mustn't be any application-level gateway (or load balancer etc) protecting the server. When you request a protected resource, the response includes the HTTP status, the HTTP headers, the intended response (the self-submitting form), and the protected resource (with no headers). This is an example of a request for a protected resource, including all the data returned. In the case where mod_auth_openidc returns a form, it has to return OK from check_userid so as not to go down the error path in httpd. This means httpd will try to issue the protected resource. oidc_content_handler is called early, which has the opportunity to prevent the normal output being issued by httpd. oidc_content_handler has a number of checks for when it intervenes, but it doesn't check for this case, so the handler returns DECLINED. Consequently, httpd appends the protected content to the response. The issue has been patched in mod_auth_openidc versions >= 2.4.16.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
mod_auth_openidc 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mod_auth_openidc是OpenIDC开源的一款Apache HTTP服务器的身份验证/授权模块。 mod_auth_openidc存在信息泄露漏洞，该漏洞源于错误导致受保护内容泄露给未认证用户。
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
OpenIDC mod_auth_openidc < 2.4.16.11 -

II. Public POCs for CVE-2025-31492

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-31492

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-31492 (1)

IV. Related Vulnerabilities

Same product: mod_auth_openidc
Same vendor: OpenIDC
Same weakness: CWE-200

V. Comments for CVE-2025-31492

No comments yet

Leave a comment