CVE-2026-9658— Plack::Middleware::Security::Common 安全漏洞

Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths

Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths. The header injection rule was ineffective at blocking header injections in the request paths unless they were double-encoded, for example, GET /path\r\nHTTP/1.1\r\nHost: secret.example.com Note that it is unclear whether request paths with CRLF followed by additional headers would be blocked by reverse proxies, or how they would be processed by Plack-based servers.

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特殊元素过滤不恰当

Plack::Middleware::Security::Common 安全漏洞

Plack::Middleware::Security::Common是RRWO个人开发者的一个Perl Web应用安全响应头中间件。 Plack::Middleware::Security::Common 0.13.1之前版本存在安全漏洞，该漏洞源于请求路径中的标头注入规则无效，除非标头注入被双重编码，例如GET /path HTTP/1.1 Host: secret.example.com，需要注意的是，不清楚反向代理是否会阻止带有CRLF后跟额外标头的请求路径，也不清楚基于Plack的服务器如何处理

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