CVE-2025-8671

Fixed in a distro release EPSS 4%CVSS 7.5

A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.

Published 2025-08-13 · CVE record · OSV

Products: SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise High Performance Computing (HPC), varnish-software Varnish Enterprise, varnish-software varnish_cache, Fastly H20, Wind River Linux, SUSE Linux Enterprise Desktop, SUSE Linux Enterprise High Performance Computing, SUSE Linux Enterprise Module for Dev Tools, SUSE Linux Enterprise Module for Package Hub, SUSE Linux Enterprise Server, SUSE Linux Enterprise Server for SAP Applications, SUSE Linux SUSE Manager Server, SUSE Linux SUSE Manager Server LTS, SUSE Linux SUSE Manager Proxy, SUSE Linux SUSE Manager Retail Branch Server, SUSE Linux openSUSE Leap

Fixed upstream

Distro releases