How severe is CVE-2026-35637?

CVE-2026-35637 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-2026-35637 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35637?

CVE-2026-35637 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35637?

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-2026-35637 have an EU (EUVD) identifier?

Yes. CVE-2026-35637 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21130.

When was CVE-2026-35637 published?

CVE-2026-35637 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2026-35637

CVE-2026-35637 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-696.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21130
Weakness: CWE-696
Affected product: Openclaw
Published: 2026-04-09
Last modified: 2026-06-17

Description

OpenClaw before 2026.3.22 performs cite expansion before completing channel and DM authorization checks, allowing cite work and content handling prior to final auth decisions. Attackers can exploit this timing vulnerability to access or manipulate content before proper authorization validation occurs.

Frequently asked questions

What is CVE-2026-35637?: OpenClaw before 2026.3.22 performs cite expansion before completing channel and DM authorization checks, allowing cite work and content handling prior to final auth decisions. Attackers can exploit this timing vulnerability to access or manipulate content before proper authorization validation occurs.
How severe is CVE-2026-35637?: CVE-2026-35637 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-2026-35637 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35637?: CVE-2026-35637 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35637?: 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-2026-35637 have an EU (EUVD) identifier?: Yes. CVE-2026-35637 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21130.
When was CVE-2026-35637 published?: CVE-2026-35637 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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