HTTP Request Smuggling Affecting openclaw package, versions <2026.6.6-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-OPENCLAW-17330400
  • published13 Jun 2026
  • disclosed28 May 2026

Introduced: 28 May 2026

CVE-2026-47676  (opens in a new tab)
CWE-444  (opens in a new tab)
CWE-693  (opens in a new tab)

How to fix?

Upgrade Minimos:latest openclaw to version 2026.6.6-r0 or higher.

NVD Description

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

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, app.mount() strips the mount prefix from the incoming request path using the raw URL pathname, while route matching is performed against the percent-decoded path. This inconsistency causes the prefix to be stripped at the wrong position when the path contains percent-encoded multi-byte characters, resulting in the mounted sub-application receiving an incorrect path. This vulnerability is fixed in 4.12.21.