CVEvulnerability

CVE-2026-9658

7.3 HIGH Published 2026-05-28 Modified 2026-10-26 Official page ↗
Status
Deferred
Published
2026-05-28
Last modified
2026-10-26
Assigner
9b29abf9-4ab0-4765-b253-1875cd9b441e
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weaknesses
CWE-113, CWE-790

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.

Related

Weakness · CWE (2)

  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers weakness
  • CWE-790 Improper Filtering of Special Elements weakness

References