CVE-2026-83536 — Openstack-network-exporter: http.server has no readheadertimeout / readtimeout (slowloris)

CVE-2026-83536

Openstack-network-exporter: http.server has no readheadertimeout / readtimeout (slowloris) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Red Hat / Red Hat OpenStack Platform 18.0	affected

CWE

CWE-400

References

https://access.redhat.com/security/cve/CVE-2026-83536
https://bugzilla.redhat.com/show_bug.cgi?id=2526401

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.