CVE-2026-118371
3.7 LOWpublic exploit availablePublished 2026-10-28 · Updated 2026-10-28
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
LibreSSL through 4.4.0 contains a CRLF injection vulnerability in the libcrypto OCSP_sendreq_new() and OCSP_parse_url() functions, which write unvalidated request paths into the OCSP POST request line. Attackers can embed carriage return and line feed characters in a certificate's Authority Information Access OCSP URI to inject HTTP headers or split requests sent to responders and proxies.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-93
Public exploit & PoC references
All references
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt
- https://github.com/libressl/portable
- https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184
- https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591
- https://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendreq-new-request-line
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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