How severe is CVE-2026-43527?

CVE-2026-43527 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-43527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-43527?

CVE-2026-43527 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-43527?

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-2026-43527 have an EU (EUVD) identifier?

Yes. CVE-2026-43527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27265.

When was CVE-2026-43527 published?

CVE-2026-43527 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-43527

CVE-2026-43527 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 7.7. 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 7.7)
CVSS v4: 6.3
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27265
Weakness: CWE-918
Affected product: Openclaw
Published: 2026-05-05
Last modified: 2026-06-17

Description

OpenClaw before 2026.4.14 contains a server-side request forgery vulnerability in browser SSRF policy that allows private-network navigation by default. Attackers can exploit this misconfiguration to access internal services or metadata endpoints through browser-driven requests.

Frequently asked questions

What is CVE-2026-43527?: OpenClaw before 2026.4.14 contains a server-side request forgery vulnerability in browser SSRF policy that allows private-network navigation by default. Attackers can exploit this misconfiguration to access internal services or metadata endpoints through browser-driven requests.
How severe is CVE-2026-43527?: CVE-2026-43527 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-43527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-43527?: CVE-2026-43527 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-43527?: 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-2026-43527 have an EU (EUVD) identifier?: Yes. CVE-2026-43527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27265.
When was CVE-2026-43527 published?: CVE-2026-43527 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

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

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