CVE-2026-41329CWE-648

OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner Escalation

Critical · published April 20, 2026

CVSS v4.0
9.0
EPSS
1%
Percentile
43.1
In the wild
Unconfirmed
What it is

OpenClaw before 2026.3.31 contains a sandbox bypass vulnerability allowing attackers to escalate privileges via heartbeat context inheritance and senderIsOwner parameter manipulation. Attackers can exploit improper context validation to bypass sandbox restrictions and achieve unauthorized privilege escalation.

The record
Technical detail
CVSS v4.0
9.0 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00516 · 43.1th percentile
Weakness
CWE-648 · Incorrect Use of Privileged APIs
Published
2026-04-20T23:08Z
EPSS history
Timeline
  • 20 APR 23:08Z
    OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner Escalation
    cvelistv5