🛡️ CVE-2026-9658
🟠 CVSS 7.3 — High ✅ No Known Exploit CWE-113 NVD
7.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 7.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE CWE-113
Public Exploit ✅ No
Source NVD
Published 2026-05-28
Updated 2026-06-02
Modified 2026-06-01
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

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