CVE-2026-22178

Medium

Description

OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.

SeverityMedium

CVSS6.5

Exploit probability—

ProductOpenclaw

PublishedMar 18, 2026

First seenMar 18, 2026

Weakness typeCWE-1333CWE-1333

How to fix

Update

openclaw openclaw2026.2.19 or later
openclaw2026.2.19 or later

Patches

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.2.19	2026.2.19
openclawnpm	v < 2026.2.19	2026.2.19

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