Is CVE-2026-22178 in the CISA KEV catalog?

No. CVE-2026-22178 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22178?

CVE-2026-22178 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-22178?

CVE-2026-22178 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22178?

Upgrade openclaw to 2026.2.19 or later.

CVE & CISA-KEV Catalog

CVE-2026-22178

MEDIUM

6.5

CVSS v3

NVD

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.

CWE-1333

How to fix

Remediation Available

openclawNVD

Affected:< 2026.2.19Fixed in:2026.2.19CVE-2026-22178derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

Embed a live status badge for CVE-2026-22178

Markdown

[![CVE-2026-22178](https://tridentstack.com/cve/badge/CVE-2026-22178.svg)](https://tridentstack.com/cve/CVE-2026-22178)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-22178"><img src="https://tridentstack.com/cve/badge/CVE-2026-22178.svg" alt="CVE-2026-22178"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-19.