{"id":"CVE-2026-83536","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83536","generatedAt":"2026-10-28T04:35:25.623Z","title":"This vulnerability allows an unauthenticated, remote attacker to initiate multiple slow HTTP header connections.","description":"A flaw was found in openstack-network-exporter. The HTTP server within the component is configured without essential timeout settings, such as ReadHeaderTimeout. This vulnerability allows an unauthenticated, remote attacker to initiate multiple slow HTTP header connections. By trickling header bytes, the attacker can exhaust server resources, specifically file descriptors, leading to a Denial of Service (DoS) that prevents legitimate Prometheus metric scraping and alerting.","published":"2026-10-12T19:16:40.000Z","lastModified":"2026-10-15T16:33:26.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-400"],"affected":[],"epss":{"score":0.00314,"percentile":0.24169,"date":"2026-10-27","history":[{"date":"2026-10-13","score":0.00314,"percentile":0.2254}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-12T19:16:40.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-12T19:16:39.997Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-83536","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526401","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83536","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}