{"id":"CVE-2026-83536","title":"A flaw was found in openstack-network-exporter","summary":"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 m…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400"],"published":"2026-10-12","updated":"2026-10-13","sourceUpdated":"2026-10-13T17:17:47.457","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83536","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-83536","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526401","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00314,"epssPercentile":0.2254,"ingestedAt":"2026-10-12T20:03:12.357Z","slug":"CVE-2026-83536","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}