OpenClaw: Zalo replay dedupe cache could suppress events across authenticated webhook targets
Summary
Before OpenClaw 2026.3.31, the Zalo webhook replay-dedupe cache was shared across authenticated webhook targets and keyed too broadly. In multi-account deployments, a replay seen on one account could suppress a legitimate event on another account if event_name and message_id matched.
Impact
An attacker who controlled one authenticated Zalo webhook path in a multi-account gateway deployment could cause silent message suppression on a different Zalo account sharing that gateway. This was an availability issue; it did not provide cross-account authentication or data access.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected versions:
>= 2026.2.19, < 2026.3.31 - Patched versions:
>= 2026.3.31 - Latest published npm version:
2026.4.1
Fix Commit(s)
4d038bb242c11f39e45f6a4bde400e5fd42e4ebf— scope webhook replay dedupe per target7cea7c29705b188b464cc9cdc107c275b94b2a72— follow-up hardening to scope replay dedupe by path and account
Release Process Note
The initial fix shipped in OpenClaw 2026.3.31 on March 31, 2026. The current published npm release 2026.4.1 from April 1, 2026 also contains follow-up hardening for the same surface.
Thanks @nexrin for reporting.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | >= 2026.2.19, < 2026.3.31 | 2026.3.31 |
References
- 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- Weakness (CWE)
CWE-287- Platform
- npm
- Package
openclaw- Disclosed
- 07.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fqrj-m88p-qf3v - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw: Zalo replay dedupe cache could suppress events across authenticated webhook targets this entry
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