CVE-2026-118373 - LibreSSL ocspcheck through 4.4.0 Cleartext Transmission of OCSP Requests via url2host()

CVE-2026-118373 - LibreSSL ocspcheck through 4.4.0 Cleartext Transmission of OCSP Requests via url2host()

https://cvefeed.io/rssfeed/latest.atom / Wed, 10/28/2026 - 07:12
CVE ID :CVE-2026-118373
Published : Oct. 28, 2026, 3:17 a.m. | 1 hour, 6 minutes ago
Description :LibreSSL ocspcheck through 4.4.0 contains a cleartext transmission vulnerability because url2host() discards the OCSP URL scheme and http_alloc() only selects TLS for port 443. On-path network attackers can read OCSP requests sent to https responder URLs on non-443 ports, exposing certificate serial numbers, issuer hashes, and nonces.
Severity: 6.3 | MEDIUM
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.