CVE-2026-22178

OpenClaw < 2026.2.19 - ReDoS and Regex Injection via Unescaped Feishu Mention Metadata

CVSS 6.9 MEDIUMEPSS 0.3%CWE-1333

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

18 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Affected products

OpenClaw · OpenClaw

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References

https://github.com/openclaw/openclaw/commit/74268489137510b6f6349919d1e197b17290d92c https://github.com/openclaw/openclaw/commit/7e67ab75cc2f0e93569d12fecd1411c2961fcc8c https://github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636 https://www.vulncheck.com/advisories/openclaw-redos-and-regex-injection-via-unescaped-feishu-mention-metadata