CVE-2026-32053Network attack vector

Call-state corruption via randomized webhook event identifiers

Published Mar 21, 2026 · Updated Mar 21, 2026

Capture-replay bypass in OpenClaw before 2026.2.23 allows remote attackers to corrupt call state via replayed Twilio webhooks. The Twilio webhook normalizer generated a fresh event ID on each parse, so the voice-call manager compared different identifiers for the same replayed callback. A valid signed webhook must be captured and replayed; accepted duplicates can corrupt call state or satisfy a stale speech turn without disclosing data.

CVSS severity6.9
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Capture-replay bypass in OpenClaw before 2026.2.23 allows remote attackers to corrupt call state via replayed Twilio webhooks. The Twilio webhook normalizer generated a fresh event ID on each parse, so the voice-call manager compared different identifiers for the same replayed callback. A valid signed webhook must be captured and replayed; accepted duplicates can corrupt call state or satisfy a stale speech turn without disclosing data.

The record

CVE
CVE-2026-32053
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-863, CWE-294, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.2.23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.2.23

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-294Authentication Bypass by Capture-replay
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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