CVE-2026-35635
Webhook Route Replacement Vulnerability in OpenClaw Synology Chat Extension
Publication date: 2026-04-09
Last updated on: 2026-04-15
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openclaw | openclaw | to 2026.3.22 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
| CWE-706 | The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in OpenClaw before version 2026.3.22 within the Synology Chat extension. It involves a webhook path route replacement issue that allows attackers to collapse multiple account configurations onto shared webhook paths.
By exploiting inherited or duplicate webhook paths, attackers can bypass direct message access control policies that are meant to be enforced per account. This means attackers can replace route ownership across different accounts, potentially gaining unauthorized access or control.
How can this vulnerability impact me? :
The vulnerability can impact you by allowing attackers to bypass access controls on direct messages within Synology Chat. This could lead to unauthorized access to private communications or data across multiple accounts.
Because attackers can replace route ownership across accounts, they might manipulate or intercept messages intended for other users, potentially compromising confidentiality and integrity of communications.