CVEvulnerability
CVE-2026-97032
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-08
- Last modified
- 2026-10-15
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-362
Description
HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://go.dev/cl/847188 go.dev
- https://go.dev/cl/847313 go.dev
- https://go.dev/issue/81867 go.dev
- https://groups.google.com/g/golang-announce/c/U2fTuyDJznI groups.google.com
- https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs groups.google.com
- https://pkg.go.dev/vuln/GO-2026-6617 pkg.go.dev