CVE-2026-35670CWE-807

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

Medium · published April 10, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
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
EPSS
0.00417 · 35.0th percentile
Weakness
CWE-807 · Reliance on Untrusted Inputs in a Security Decision
Published
2026-04-10T16:03Z
EPSS history
Timeline
  • 10 APR 16:03Z
    OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
    cvelistv5