How severe is CVE-2026-35634?

CVE-2026-35634 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-35634 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35634?

CVE-2026-35634 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35634?

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

Does CVE-2026-35634 have an EU (EUVD) identifier?

Yes. CVE-2026-35634 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21124.

When was CVE-2026-35634 published?

CVE-2026-35634 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2026-35634

CVE-2026-35634 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 5.1. 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-288.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
CVSS v4: 5.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21124
Weakness: CWE-288
Affected product: Openclaw
Published: 2026-04-09
Last modified: 2026-06-17

Description

OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthenticated loopback HTTP and WebSocket requests to Canvas routes to bypass authentication and gain unauthorized access.

Frequently asked questions

What is CVE-2026-35634?: OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthenticated loopback HTTP and WebSocket requests to Canvas routes to bypass authentication and gain unauthorized access.
How severe is CVE-2026-35634?: CVE-2026-35634 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-35634 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35634?: CVE-2026-35634 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35634?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35634 have an EU (EUVD) identifier?: Yes. CVE-2026-35634 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21124.
When was CVE-2026-35634 published?: CVE-2026-35634 was published on 2026-04-09 and last updated on 2026-06-17.

References

Affected products (1)

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

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