CVE-2026-56862 Affecting xeol package, versions <0.10.8-r52


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.57% (45th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-XEOL-18816230
  • published15 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-56862  (opens in a new tab)

How to fix?

Upgrade Chainguard xeol to version 0.10.8-r52 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xeol package and not the xeol 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