CVE-2026-56862 Affecting spire-server-fips package, versions <1.15.2-r6


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.48% (40th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-SPIRESERVERFIPS-18843289
  • published15 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

NewCVE-2026-56862  (opens in a new tab)

How to fix?

Upgrade Chainguard spire-server-fips to version 1.15.2-r6 or higher.

NVD Description

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

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

CVSS Base Scores

version 3.1