CVE-2026-32048: OpenClaw < 2026.3.1 - Sandbox Escape via Cross-Agent sessions_spawn

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-21 · updated 2026-06-17
Weakness: CWE-732

Description

OpenClaw versions prior to 2026.3.1 fail to enforce sandbox inheritance during cross-agent sessions_spawn operations, allowing sandboxed sessions to create child processes under unsandboxed agents. An attacker with a sandboxed session can exploit this to spawn child runtimes with sandbox.mode set to off, bypassing runtime confinement restrictions.

Affected products

OpenClaw: before 2026.3.1 — fixed in 2026.3.1

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.1. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-p7gr-f84w-hqg5
https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-cross-agent-sessions-spawn

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