ALPINE-CVE-2026-78663
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-78663
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-78663.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-78663
- Upstream
- CVE-2026-78663
- Published
- 2026-10-08T23:17:03Z
- Modified
- 2026-11-03T06:33:06Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.
- References