CVE-2026-83536: Uncontrolled Resource Consumption in Red Hat Red Hat OpenStack Platform 18.0
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.
CVSS v3.1
Score 5.3medium
Affected software
Red Hat
Red Hat OpenStack Platform 18.0
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-08-31T16:53:08.479Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-83536","vendor":"Red Hat"}]
Threat ID: 6acd2f272cdf04f656c3e8ca
Added to database: 10/12/2026, 19:04:07 UTC
Last updated: 10/12/2026, 19:04:07 UTC
Views: 1
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