CVE-2026-32053
Received Received - Intake
Replay Vulnerability in OpenClaw Twilio Webhook Event Deduplication

Publication date: 2026-03-21

Last updated on: 2026-03-24

Assigner: VulnCheck

Description
OpenClaw versions prior to 2026.2.23 contain a vulnerability in Twilio webhook event deduplication where normalized event IDs are randomized per parse, allowing replay events to bypass manager dedupe checks. Attackers can replay Twilio webhook events to trigger duplicate or stale call-state transitions, potentially causing incorrect call handling and state corruption.
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Meta Information
Published
2026-03-21
Last Modified
2026-03-24
Generated
2026-06-16
AI Q&A
2026-03-21
EPSS Evaluated
2026-06-15
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw to 2026.2.23 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-294 A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).
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Executive Summary

[{'type': 'paragraph', 'content': 'CVE-2026-32053 is a vulnerability in OpenClaw versions prior to 2026.2.23 related to Twilio webhook event deduplication.'}, {'type': 'paragraph', 'content': "The problem arises because normalized event IDs are randomized each time they are parsed, which allows attackers to replay Twilio webhook events that bypass the system's deduplication checks."}, {'type': 'paragraph', 'content': 'This replay attack can cause duplicate or stale call-state transitions, potentially leading to incorrect call handling and corruption of call state.'}] [2, 3]

Impact Analysis

[{'type': 'paragraph', 'content': "This vulnerability allows attackers to replay Twilio webhook events, which can bypass the voice-call manager's deduplication mechanism."}, {'type': 'paragraph', 'content': 'As a result, duplicate or stale call-state transitions may be triggered, potentially causing incorrect call handling and state corruption.'}, {'type': 'paragraph', 'content': 'This can disrupt call management, leading to unreliable or erroneous call behavior.'}] [2, 3]

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate the vulnerability CVE-2026-32053 in OpenClaw, you should upgrade to version 2026.2.23 or later where the issue is fixed.

  • Upgrade OpenClaw to version 2026.2.23 which preserves original provider event IDs during normalization.
  • Ensure bounded replay deduplication is implemented within webhook security validation.
  • Enforce per-call turn-token checks on call-state transitions to prevent replayed events from bypassing authentication and authorization.
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