CVE-2026-83536
Openstack-network-exporter: http.server has no readheadertimeout / readtimeout (slowloris)
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-400 |
| Vendor | red hat |
| Product | red hat openstack platform 18.0 |
| Published | Oct 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Red Hat / Red Hat OpenStack Platform 18.0
All versions affected