CVE-2026-35670HIGH 8.1EPSS p14.3%

CVE-2026-35670CVE-2026-35670

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.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS0.24% probability of exploitation · percentile 14.3% · 2026-06-19T12:03:05Z
Published2026-04-10
Last modified2026-04-13

Underlying weaknesses· 1

CWE-807

References

  1. https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
  2. https://github.com/openclaw/openclaw/commit/7ade3553b74ee3f461c4acd216653d5ba411f455
  3. https://github.com/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf
  4. https://www.vulncheck.com/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat

1

TypeTargetConfidenceTier
WeaknessReliance on Untrusted Inputs in a Security Decisioncwe-8070%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.