CVE-2026-28395CRITICAL 9.1EPSS p31.3%

CVE-2026-28395CVE-2026-28395

Description

OpenClaw version 2026.1.14-1 prior to 2026.2.12 contains an improper network binding vulnerability in the Chrome extension (must be installed and enabled) relay server that treats wildcard hosts as loopback addresses, allowing the relay HTTP/WS server to bind to all interfaces when a wildcard cdpUrl is configured. Remote attackers can access relay HTTP endpoints off-host to leak service presence and port information, or conduct denial-of-service and brute-force attacks against the relay token header.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS0.40% probability of exploitation · percentile 31.3% · 2026-06-18T12:00:27Z
Published2026-03-05
Last modified2026-05-26

Underlying weaknesses· 1

CWE-1327

References

  1. https://github.com/openclaw/openclaw/commit/8d75a496bf5aaab1755c56cf48502d967c75a1d0
  2. https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c
  3. https://github.com/openclaw/openclaw/security/advisories/GHSA-qw99-grcx-4pvm
  4. https://www.vulncheck.com/advisories/openclaw-unintended-public-binding-of-chrome-extension-relay-via-wildcard-cdpurl

1

TypeTargetConfidenceTier
WeaknessBinding to an Unrestricted IP Addresscwe-13270%live

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