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CVE-2026-35670

Published: Apr 10, 2026

Modified: May 25, 2026

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username changes to redirect webhook-triggered replies to different users, bypassing the intended recipient binding recorded in webhook events.

Vendor	Product	Versions
OpenClaw	OpenClaw	affected `0 - < 2026.3.22` unaffected `2026.3.22`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

References

GitHub Security Advisory (GHSA-wv46-v6xc-2qhf)

third-party-advisory

Patch Commit #1

patch

Patch Commit #2

patch

VulnCheck Advisory: OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat

third-party-advisory

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