01 Record
CVE-2026-118371
LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line
MediumPUBLISHEDCNA: VulnCheck
CNA base score6.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
02 Description
LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.13% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 2.9% of scored records. A rank, not a probability.
- NVD base score
- 6.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-28.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-28 02:03Z1 DAY AGO
- Last updated
- 2026-10-28 02:03Z1 DAY AGO
- Reserved
- 2026-10-28
- Assigning CNA
- VulnCheck
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')Base
- Data version
- 5.2
- Document digest
- ef143f526f0e70251fd48e10de0df13744c37f0138ca112d36a3fad0130bffa3
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591
- github.comhttps://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184
- ftp.openbsd.orgLibreSSL 4.4.0 Release Noteshttps://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt
- github.comhttps://github.com/libressl/portable
- www.vulncheck.comVulnCheck Advisory: LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Linehttps://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendreq-new-request-line