CVE-2026-78669 Affecting stunner-gateway-operator package, versions <1.2.1-r13


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.57% (46th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-STUNNERGATEWAYOPERATOR-20783208
  • published10 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-78669  (opens in a new tab)

How to fix?

Upgrade Chainguard stunner-gateway-operator to version 1.2.1-r13 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream stunner-gateway-operator package and not the stunner-gateway-operator package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.

CVSS Base Scores

version 3.1