GHSA-rxmx-g7hr-8mx4 — medium GitHub Advisory (CVE-2026-41354) in npm/openclaw

Description

Summary

Before OpenClaw 2026.4.2, Zalo webhook replay dedupe keys were not scoped strongly enough across chat and sender dimensions. Legitimate events from different conversations or senders could collide and be dropped as duplicates.

Impact

Cross-conversation or cross-sender collisions could cause silent message suppression and break bot workflows. This was an availability issue in webhook event processing.

Affected Packages / Versions

Package: openclaw (npm)
Affected versions: <= 2026.4.1
Patched versions: >= 2026.4.2
Latest published npm version: 2026.4.1

Fix Commit(s)

ef7c553dd16ee579f1d1a363f5881a99726c1412 — scope Zalo webhook replay dedupe across the missing event dimensions

Release Process Note

The fix is present on main and is staged for OpenClaw 2026.4.2. Publish this advisory after the 2026.4.2 npm release is live.

Thanks @D0ub1e-D for reporting.

Basic information

Type: reviewed
Severity: medium
Advisory on GitHub: Open advisory ↗
Repository advisory: Open repository advisory ↗
Source code: Browse source ↗
Published (advisory): 2026-04-07 18:15:59 UTC
Updated: 2026-05-07 16:44:15 UTC
GitHub reviewed: 2026-04-07 18:15:59 UTC

Score	Percentile
0.05%	15.74%

CVSS Scores

Base score	Version	Severity	Vector
6.3	4.0	—	`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network. Attack complexity (AC:H) Exploitation depends on constrained or hard-to-reproduce conditions. Attack requirements (AT:N) No additional preconditions are required beyond normal reachability. Privileges required (PR:N) No privileges are required. User interaction (UI:N) No user interaction is required. Vulnerable system confidentiality impact (VC:N) No confidentiality impact on the vulnerable system. Vulnerable system integrity impact (VI:N) No integrity impact on the vulnerable system. Vulnerable system availability impact (VA:L) Limited availability impact on the vulnerable system. Subsequent system confidentiality impact (SC:N) No confidentiality impact on subsequent systems. Subsequent system integrity impact (SI:N) No integrity impact on subsequent systems. Subsequent system availability impact (SA:N) No availability impact on subsequent systems.

Identifiers

Type	Value
GHSA	GHSA-rxmx-g7hr-8mx4 ↗
CVE	CVE-2026-41354 ↗

CWEs

CWE id	Name
CWE-349	Acceptance of Extraneous Untrusted Data With Trusted Data
CWE-440	Expected Behavior Violation

Credits

D0ub1e-D (reporter)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
npm	openclaw	<= 2026.4.1	2026.4.2	—

OpenClaw: Zalo replay dedupe keys could suppress messages across chats or senders