How severe is CVE-2026-22178?

CVE-2026-22178 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-22178 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22178?

CVE-2026-22178 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22178?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-22178 have an EU (EUVD) identifier?

Yes. CVE-2026-22178 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12722.

When was CVE-2026-22178 published?

CVE-2026-22178 was published on 2026-03-18 and last updated on 2026-06-17.

CVE-2026-22178

CVE-2026-22178 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1333.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12722
Weakness: CWE-1333
Affected product: Openclaw
Published: 2026-03-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22178?: 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.
How severe is CVE-2026-22178?: CVE-2026-22178 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-22178 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22178?: CVE-2026-22178 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22178?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22178 have an EU (EUVD) identifier?: Yes. CVE-2026-22178 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12722.
When was CVE-2026-22178 published?: CVE-2026-22178 was published on 2026-03-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

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