Race Condition Affecting golang-shared package, versions <0:1.26.9-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.68% (53rd percentile)

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  • Snyk IDSNYK-AMZN2-GOLANGSHARED-21696010
  • published25 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

CVE-2026-97032  (opens in a new tab)
CWE-366  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 golang-shared to version 0:1.26.9-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2026-4005.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-shared package and not the golang-shared package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1