What is CVE-2026-44909?
CVE-2026-44909 relates to the lack of a generalized slow-consumer detection mechanism in Proxygen's core HTTP/2 session layer. A remote, unauthenticated attacker can deplete server memory by setting SETTINGS_INITIAL_WINDOW_SIZE to 0 or withholding WINDOW_UPDATE frames, causing buffering of full response bodies. Applying the relevant patches is recommended to mitigate this vulnerability.
Related CVEs
link basis: same weakness class CWE-400
FAQ2
In which layer of Proxygen was CVE-2026-44909 discovered?
The vulnerability relates to the lack of a generalized slow-consumer detection mechanism in Proxygen's core HTTP/2 session layer.
How does an attacker deplete server memory via CVE-2026-44909?
A remote, unauthenticated attacker can deplete server memory by setting SETTINGS_INITIAL_WINDOW_SIZE to 0 or withholding WINDOW_UPDATE frames, causing buffering of full response bodies.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.