PT-2026-26009 · Openclaw · Openclaw

Sean Nejad · Published 2026-03-18 · Updated 2026-03-18 · CVE-2026-22178

Mitre

CVSS v3.1

6.5

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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.

Fix

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2026-22178

Affected Products

Openclaw

References · 5

• https://github.com/openclaw/openclaw/commit/7e67ab75cc2f0e93569d12fecd1411c2961fcc8c · Patch
• https://github.com/openclaw/openclaw/commit/74268489137510b6f6349919d1e197b17290d92c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-22178 · Security Note
• https://github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636 · Note
• https://vulncheck.com/advisories/openclaw-redos-and-regex-injection-via-unescaped-feishu-mention-metadata · Note