CVE-2026-32915
OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Subagent Control Surface
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Subagent Control Surface
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
- Record
CVE-2026-32915- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-16997
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
- Record
EUVD-2026-16997- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4w7m-58cg-cmff
OpenClaw: Leaf subagents could steer sibling sessions across sandbox boundaries
Summary
In affected versions of openclaw, sandboxed leaf subagents could still access the subagents control surface and resolve against the parent requester scope instead of remaining confined to their own session tree.
Impact
A low-privilege sandboxed leaf worker could steer or kill a sibling run owned by the same requester and cause that sibling to execute with its own broader tool policy. This is a sandbox and session-scope boundary bypass.
Affected Packages and Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.3.8 - Fixed in:
2026.3.11
Technical Details
Leaf subagents retained the subagents tool, and subagent control requests were authorized against the parent requester scope rather than the caller's own spawned descendants. The control path prevented only self-targeting, not cross-sibling steering.
Fix
OpenClaw now removes subagents control access from leaf subagents by default, scopes subagent control to the caller's own descendants, and rejects steer and kill requests that target runs outside that descendant tree. The fix shipped in [email protected].
Workarounds
Upgrade to 2026.3.11 or later.
- Record
GHSA-4w7m-58cg-cmff- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8jfx-rqjm-9jhf
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf...
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
- Record
GHSA-8jfx-rqjm-9jhf- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
- Record
CVE-2026-32915- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Subagent Control Surface
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability allowing leaf subagents to access the subagents control surface and resolve against parent requester scope instead of their own session tree. A low-privilege sandboxed leaf worker can steer or kill sibling runs and cause execution with broader tool policies by exploiting insufficient authorization checks on subagent control requests.
- Record
CVE-2026-32915- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVGHSA-4w7m-58cg-cmff
OpenClaw: Leaf subagents could steer sibling sessions across sandbox boundaries
Summary
In affected versions of openclaw, sandboxed leaf subagents could still access the subagents control surface and resolve against the parent requester scope instead of remaining confined to their own session tree.
Impact
A low-privilege sandboxed leaf worker could steer or kill a sibling run owned by the same requester and cause that sibling to execute with its own broader tool policy. This is a sandbox and session-scope boundary bypass.
Affected Packages and Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.3.8 - Fixed in:
2026.3.11
Technical Details
Leaf subagents retained the subagents tool, and subagent control requests were authorized against the parent requester scope rather than the caller's own spawned descendants. The control path prevented only self-targeting, not cross-sibling steering.
Fix
OpenClaw now removes subagents control access from leaf subagents by default, scopes subagent control to the caller's own descendants, and rejects steer and kill requests that target runs outside that descendant tree. The fix shipped in [email protected].
Workarounds
Upgrade to 2026.3.11 or later.
- Record
GHSA-4w7m-58cg-cmff- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openclawnpm |
before 2026.3.11 | 2026.3.11 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-32915 is a critical vulnerability (CVSS 9.3) in Openclaw, published March 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in openclaw 2026.3.11.
References
github.com/openclaw/openclaw/security/advisories/GHSA-4w7m-58cg-cmff
vulncheck.com/advisories/openclaw-sandbox-boundary-bypass-via-subagent-control-surface
nvd.nist.gov/vuln/detail/CVE-2026-32915