CVE-2026-15713 — Libsoup: soupcache: libsoup: http/2 frame window exhaustion remote denial of service via memory leak
A vulnerability was found in libsoup's HTTP/2 protocol implementation. The library fails to correctly release memory context blocks under specific stream termination conditions,…
Published: 2026-07-14 · CVSS: 5.9 · CVSS 3.1
A vulnerability was found in libsoup's HTTP/2 protocol implementation. The library fails to correctly release memory context blocks under specific stream termination conditions, such as when an HTTP/2 connection encounters window exhaustion or explicit stream resets. A remote, unauthenticated attacker acting as a malicious network peer can trick the connection engine into allocating stream states that are subsequently leaked during cleanup. Over a sustained period, this flaw allows the remote attacker to consume the system's heap allocations incrementally, triggering a denial of service (DoS) through an ultimate Out-of-Memory (OOM) application crash.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7