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CVE-2026-32921

OpenClaw < 2026.3.8 - Script Content Modification via Mutable Operand Binding in system.run

5.3 MediumFix available

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

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
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.20%Up 0.2 points since Mar 31, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.3

OpenClaw < 2026.3.8 - Script Content Modification via Mutable Operand Binding in system.run

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
CVE-2026-32921
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-367
Updated
2026-11-02
EUVDEUVD-2026-17375 5.3

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
EUVD-2026-17375
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-8g75-q649-6pv6 6.3

OpenClaw's system.run approvals did not bind mutable script operands across approval and execution

OpenClaw's system.run approval flow did not bind mutable interpreter-style script operands across approval and execution.

A caller could obtain approval for an execution such as sh ./script.sh, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved argv values remained the same, but the mutable script operand content could drift after approval.

Latest published npm version verified vulnerable: 2026.3.7

The initial March 7, 2026 fix in c76d29208bf6a7f058d2cf582519d28069e42240 added approval binding for shell scripts and a narrow interpreter set, but follow-up maintainer review on March 8, 2026 found that bun and deno script operands still did not produce mutableFileOperand snapshots.

A complete fix shipped on March 9, 2026 in cf3a479bd1204f62eef7dd82b4aa328749ae6c91, which binds approved bun and deno run script operands to on-disk file snapshots and denies post-approval script drift before execution.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.3.7
  • Patched version: 2026.3.8

Fix Commit(s)

  • c76d29208bf6a7f058d2cf582519d28069e42240
  • cf3a479bd1204f62eef7dd82b4aa328749ae6c91

Release Verification

  • npm 2026.3.7 remains vulnerable.
  • npm 2026.3.8 contains the completed fix.

Thanks @tdjackey for reporting.

Record
GHSA-8g75-q649-6pv6
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-285, CWE-367
Updated
2026-11-02
GitHub AdvisoriesGHSA-wwrj-437c-ppq4 5.3

Duplicate Advisory: OpenClaw's system.run approvals did not bind mutable script operands across approval and execution

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-8g75-q649-6pv6. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
GHSA-wwrj-437c-ppq4
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-367
Updated
2026-11-02
NVD 5.3

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
CVE-2026-32921
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1
5.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-367
Updated
2026-11-02
OSV 5.3

OpenClaw < 2026.3.8 - Script Content Modification via Mutable Operand Binding in system.run

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
CVE-2026-32921
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-367
Updated
2026-11-02
OSVGHSA-8g75-q649-6pv6 6.3

OpenClaw's system.run approvals did not bind mutable script operands across approval and execution

OpenClaw's system.run approval flow did not bind mutable interpreter-style script operands across approval and execution.

A caller could obtain approval for an execution such as sh ./script.sh, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved argv values remained the same, but the mutable script operand content could drift after approval.

Latest published npm version verified vulnerable: 2026.3.7

The initial March 7, 2026 fix in c76d29208bf6a7f058d2cf582519d28069e42240 added approval binding for shell scripts and a narrow interpreter set, but follow-up maintainer review on March 8, 2026 found that bun and deno script operands still did not produce mutableFileOperand snapshots.

A complete fix shipped on March 9, 2026 in cf3a479bd1204f62eef7dd82b4aa328749ae6c91, which binds approved bun and deno run script operands to on-disk file snapshots and denies post-approval script drift before execution.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.3.7
  • Patched version: 2026.3.8

Fix Commit(s)

  • c76d29208bf6a7f058d2cf582519d28069e42240
  • cf3a479bd1204f62eef7dd82b4aa328749ae6c91

Release Verification

  • npm 2026.3.7 remains vulnerable.
  • npm 2026.3.8 contains the completed fix.

Thanks @tdjackey for reporting.

Record
GHSA-8g75-q649-6pv6
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-285, CWE-367
Updated
2026-11-02
OSVGHSA-wwrj-437c-ppq4 5.3

Duplicate Advisory: OpenClaw's system.run approvals did not bind mutable script operands across approval and execution

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-8g75-q649-6pv6. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.8 contains an approval bypass vulnerability in system.run where mutable script operands are not bound across approval and execution phases. Attackers can obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Record
GHSA-wwrj-437c-ppq4
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-367
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
through 2026.3.7
2026.3.8
openclaw
npm
before 2026.3.8
2026.3.8

History

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

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

In short

CVE-2026-32921 is a medium vulnerability (CVSS 5.3) in Openclaw, published March 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 10th percentile. Fixed in openclaw 2026.3.8.

References

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