Is CVE-2026-41395 in the CISA KEV catalog?

No. CVE-2026-41395 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-41395?

CVE-2026-41395 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-41395?

CVE-2026-41395 has an EPSS score of 0.15% (4th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41395?

Upgrade openclaw to 2026.3.28 or later.

CVE & CISA-KEV Catalog

CVE-2026-41395

HIGH

7.5

CVSS v3

NVD

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.

CWE-325

How to fix

Remediation Available

openclawNVD

Affected:< 2026.3.28Fixed in:2026.3.28CVE-2026-41395derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

0.15%probability of exploitation in 30 days

4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-30.