How severe is CVE-2026-27524?

CVE-2026-27524 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-27524 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27524?

CVE-2026-27524 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27524?

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

Does CVE-2026-27524 have an EU (EUVD) identifier?

Yes. CVE-2026-27524 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12736.

When was CVE-2026-27524 published?

CVE-2026-27524 was published on 2026-03-18 and last updated on 2026-06-17.

CVE-2026-27524

CVE-2026-27524 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 4.3. 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-1321.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 2.3
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12736
Weakness: CWE-1321
Affected product: Openclaw
Published: 2026-03-18
Last modified: 2026-06-17

Description

OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.

Frequently asked questions

What is CVE-2026-27524?: OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.
How severe is CVE-2026-27524?: CVE-2026-27524 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-27524 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27524?: CVE-2026-27524 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27524?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27524 have an EU (EUVD) identifier?: Yes. CVE-2026-27524 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12736.
When was CVE-2026-27524 published?: CVE-2026-27524 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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