CVE-2026-78662 Affecting grafana-mimir-fips-3.2 package, versions <3.2.0-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.32% (24th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-GRAFANAMIMIRFIPS32-19537876
  • published5 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

NewCVE-2026-78662  (opens in a new tab)

How to fix?

Upgrade Minimos:latest grafana-mimir-fips-3.2 to version 3.2.0-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana-mimir-fips-3.2 package and not the grafana-mimir-fips-3.2 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time, handlePacket drops every packet other than the open confirmation/failure, without blocking and without tearing down the connection.

CVSS Base Scores

version 3.1