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CVE-2026-27566

OpenClaw < 2026.2.22 - Allowlist Bypass via Wrapper Binary Unwrapping in system.run

7.1 HighFix available

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
Low

Exploit likelihood

0.45%Up 0.4 points since Mar 19, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.1

OpenClaw < 2026.2.22 - Allowlist Bypass via Wrapper Binary Unwrapping in system.run

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.

Record
CVE-2026-27566
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Weakness
CWE-78
Updated
2026-11-02
EUVDEUVD-2026-13007 7.1

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.

Record
EUVD-2026-13007
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-jj82-76v6-933r 7.1

OpenClaw's exec allowlist wrapper analysis did not unwrap env/shell dispatch chains

Summary

system.run exec allowlist analysis treated wrapper binaries as the effective executable and did not fully unwrap env/shell-dispatch wrappers.

This allowed wrapper-smuggled payloads (for example env bash -lc ...) to satisfy an allowlist entry for the wrapper while executing non-allowlisted commands.

Impact

On affected versions, an actor who can trigger system.run requests under an allowlist policy could bypass intended allowlist restrictions by routing execution through wrapper binaries.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: <= 2026.2.21-2
  • Patched in next release: 2026.2.22 (pre-set below so publish can happen immediately after npm release)

Fix Commit(s)

  • 2b63592be57782c8946e521bc81286933f0f99c7

Release Process Note

patched_versions is pre-set to the planned next release (>= 2026.2.22).

After npm 2026.2.22 is published, this advisory can be published directly without further metadata edits.

OpenClaw thanks @tdjackey for reporting.

Record
GHSA-jj82-76v6-933r
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-78, CWE-863
Updated
2026-11-02
NVD 7.1

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.

Record
CVE-2026-27566
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/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
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
OSV 7.1

OpenClaw < 2026.2.22 - Allowlist Bypass via Wrapper Binary Unwrapping in system.run

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.

Record
CVE-2026-27566
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-78
Updated
2026-11-02
OSVGHSA-jj82-76v6-933r 7.1

OpenClaw's exec allowlist wrapper analysis did not unwrap env/shell dispatch chains

Summary

system.run exec allowlist analysis treated wrapper binaries as the effective executable and did not fully unwrap env/shell-dispatch wrappers.

This allowed wrapper-smuggled payloads (for example env bash -lc ...) to satisfy an allowlist entry for the wrapper while executing non-allowlisted commands.

Impact

On affected versions, an actor who can trigger system.run requests under an allowlist policy could bypass intended allowlist restrictions by routing execution through wrapper binaries.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: <= 2026.2.21-2
  • Patched in next release: 2026.2.22 (pre-set below so publish can happen immediately after npm release)

Fix Commit(s)

  • 2b63592be57782c8946e521bc81286933f0f99c7

Release Process Note

patched_versions is pre-set to the planned next release (>= 2026.2.22).

After npm 2026.2.22 is published, this advisory can be published directly without further metadata edits.

OpenClaw thanks @tdjackey for reporting.

Record
GHSA-jj82-76v6-933r
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-78, CWE-863
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 before 2026.2.22
2026.2.22

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-27566 is a high vulnerability (CVSS 7.1) in Openclaw, published March 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in openclaw 2026.2.22.

References

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