How severe is CVE-2026-41395?

CVE-2026-41395 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-41395 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-2026-41395?

CVE-2026-41395 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41395?

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-2026-41395 have an EU (EUVD) identifier?

Yes. CVE-2026-41395 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26103.

When was CVE-2026-41395 published?

CVE-2026-41395 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-41395

CVE-2026-41395 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 7.5. 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-325.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.2
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26103
Weakness: CWE-325
Affected product: Openclaw
Published: 2026-04-28
Last modified: 2026-06-17

Description

OpenClaw before 2026.3.28 contains a webhook replay vulnerability in Plivo V3 signature verification that canonicalizes query ordering for signatures but hashes raw URLs for replay detection. Attackers can reorder query parameters to bypass replay cache detection and trigger duplicate voice-call processing with a captured valid signed webhook.

Frequently asked questions

What is CVE-2026-41395?: OpenClaw before 2026.3.28 contains a webhook replay vulnerability in Plivo V3 signature verification that canonicalizes query ordering for signatures but hashes raw URLs for replay detection. Attackers can reorder query parameters to bypass replay cache detection and trigger duplicate voice-call processing with a captured valid signed webhook.
How severe is CVE-2026-41395?: CVE-2026-41395 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-41395 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-2026-41395?: CVE-2026-41395 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41395?: 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-2026-41395 have an EU (EUVD) identifier?: Yes. CVE-2026-41395 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26103.
When was CVE-2026-41395 published?: CVE-2026-41395 was published on 2026-04-28 and last updated on 2026-06-17.

References

Affected products (1)

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

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