CVE-2026-41362 PUBLISHED

OpenClaw 2026.2.19 < 2026.3.31 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication

Assigner: VulnCheck
Reserved: 20.04.2026 Published: 27.04.2026 Updated: 27.04.2026

OpenClaw versions 2026.2.19 before 2026.3.31 contain an improper cache isolation vulnerability in the Zalo webhook replay-dedupe mechanism that is shared across authenticated webhook targets. Attackers controlling one authenticated Zalo webhook path in multi-account deployments can suppress legitimate events on different accounts by matching event_name and message_id parameters.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 2.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	OpenClaw
Product	OpenClaw
Versions	Default: unaffected affected from 2026.2.19 to 2026.3.31 (excl.) Version 2026.3.31 is unaffected

CVE-2026-41362 PUBLISHED

OpenClaw 2026.2.19 < 2026.3.31 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication

Metrics

Product Status

Credits

References

Problem Types