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.

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenClaw OpenClaw unaffected
Version Status Constraints
0 affected < 2026.3.22
2026.3.22 unaffected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Openclaw Subscribe
Openclaw Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-wv46-v6xc-2qhf OpenClaw: Synology Chat reply delivery could be rebound through username-based user resolution.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 cve-icon cve-icon
https://github.com/openclaw/openclaw/commit/7ade3553b74ee3f461c4acd216653d5ba411f455 cve-icon cve-icon
https://github.com/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf cve-icon cve-icon
https://www.vulncheck.com/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat cve-icon cve-icon
History

Fri, 10 Apr 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-807
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-10T16:03:28.524Z

Reserved: 2026-04-04T12:32:50.476Z

Link: CVE-2026-35670

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-10T17:17:09.413

Modified: 2026-04-10T17:17:09.413

Link: CVE-2026-35670

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses