How severe is CVE-2026-27488?

CVE-2026-27488 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-27488 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27488?

CVE-2026-27488 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27488?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-27488 have an EU (EUVD) identifier?

Yes. CVE-2026-27488 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7711.

When was CVE-2026-27488 published?

CVE-2026-27488 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-27488

CVE-2026-27488 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 7.3. 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-918.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7711
Weakness: CWE-918
Affected product: Openclaw
Published: 2026-02-21
Last modified: 2026-06-17

Description

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Frequently asked questions

What is CVE-2026-27488?: OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.
How severe is CVE-2026-27488?: CVE-2026-27488 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-27488 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27488?: CVE-2026-27488 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27488?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27488 have an EU (EUVD) identifier?: Yes. CVE-2026-27488 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7711.
When was CVE-2026-27488 published?: CVE-2026-27488 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

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

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