CVE-2026-35670
OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
CVSS Score
5.9
EPSS Score
0.1%
EPSS Percentile
22th
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.
| CWE | CWE-807 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Apr 10, 2026 |
| Last Updated | Apr 14, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
OpenClaw / OpenClaw
0 < 2026.3.22
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf github.com: https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 github.com: https://github.com/openclaw/openclaw/commit/7ade3553b74ee3f461c4acd216653d5ba411f455 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat
Credits
🔍 Nathan (@nexrin) KeenSecurityLab