Description


LibreSSL ocspcheck through 4.4.0 contains a CRLF injection vulnerability that allows attackers to inject HTTP headers by embedding CR/LF sequences in a certificate's AIA OCSP URI path. Because url2host() copies the path without rejecting control characters and http_open() places it in the POST request line, attackers can inject headers or split OCSP requests sent to the responder host.

Related CPE's


Could not find any relations

Weaknesses



CWE-93

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

3.7 · Low

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-28T03:17:13.607Z

13 hours ago

Last modified

2026-10-28T14:49:05.060Z

1 hour ago