CVE-2026-35670

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (4)

Core 4
Core References
Third Party Advisory third-party-advisory
GitHub Security Advisory (GHSA-wv46-v6xc-2qhf)
https://github.com/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
https://www.vulncheck.com/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat

Scores

CVSS v3 5.9
EPSS 0.0024
EPSS Percentile 14.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-807
Status published
Products (4)
npm/openclaw 0 - 2026.3.22npm
OpenClaw/OpenClaw < 2026.3.22
openclaw/openclaw < 2026.3.22
OpenClaw/OpenClaw 2026.3.22
Published Apr 10, 2026
Tracked Since Apr 10, 2026