CVE-2026-32053 in OpenClaw
Summary
by MITRE • 03/21/2026
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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Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2026-32053 affects OpenClaw versions prior to 2026.2.23 and specifically targets the Twilio webhook event deduplication mechanism. This flaw resides in the event processing pipeline where normalized event identifiers are generated with randomization on each parse operation rather than maintaining consistent identification across multiple processing attempts. The core technical issue stems from a design weakness in the deduplication algorithm that fails to establish stable event tracking mechanisms. The randomized nature of normalized event IDs creates a scenario where identical webhook events can be processed multiple times without being recognized as duplicates by the system's deduplication manager. This vulnerability directly impacts the integrity of event processing workflows within the OpenClaw platform, particularly in environments that rely on Twilio's webhook infrastructure for call management and state transitions.
The operational impact of this vulnerability extends beyond simple duplicate processing issues to potentially compromise the entire call state management system. When attackers exploit this weakness by replaying Twilio webhook events, they can trigger incorrect call handling behaviors that may result in state corruption throughout the platform. The randomized event IDs bypass the manager's deduplication checks entirely, allowing stale or replayed events to be processed as if they were fresh incoming events. This creates a cascade of potential issues including incorrect call routing decisions, duplicated call processing, and inconsistent state representations within the system. The vulnerability essentially undermines the fundamental reliability of the event processing pipeline, potentially leading to service disruption or incorrect business logic execution when call states are modified based on replayed events that should have been filtered out.
Security implications of CVE-2026-32053 align with CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) and CWE-328 (Use of Weak Hash Algorithm) as the randomized normalization process fails to provide the cryptographic strength required for reliable event identification. The vulnerability also maps to ATT&CK technique T1059.001 (Command and Scripting Interpreter: PowerShell) in scenarios where attackers might leverage this weakness to manipulate system state through repeated event processing, though the primary attack vector involves webhook replay rather than direct command execution. Organizations using OpenClaw systems with affected versions face significant risk of operational degradation and potential service disruption when this vulnerability is exploited. The randomized event ID generation creates a window of opportunity for attackers to manipulate call states repeatedly, potentially leading to unauthorized access to call resources or disruption of legitimate call processing workflows. The vulnerability demonstrates a critical flaw in event processing design where the system's ability to maintain consistent state information is compromised by inadequate deduplication mechanisms.
Mitigation strategies for CVE-2026-32053 should prioritize immediate upgrade to OpenClaw version 2026.2.23 or later, which contains the patched deduplication logic. Organizations should implement additional monitoring mechanisms to detect unusual patterns of webhook event processing that might indicate replay attacks. Network-level controls including webhook request validation and rate limiting can provide additional defense in depth. Security teams should review existing event processing workflows to identify potential state corruption scenarios that could be exploited through this vulnerability. The fix implemented in the patched version addresses the core issue by ensuring that normalized event IDs maintain consistent identification across parse operations, thereby restoring proper deduplication functionality. System administrators should also consider implementing event logging and correlation mechanisms that can help detect when replayed events are being processed, enabling faster incident response when such attacks occur. The vulnerability highlights the importance of proper cryptographic design in event identification systems and serves as a reminder that seemingly minor implementation flaws in deduplication logic can have significant operational consequences.