CVE-2026-32921
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.
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
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 Medium
CVSS: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 Medium
CVSS: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 Medium
CVSS: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)
c76d29208bf6a7f058d2cf582519d28069e42240cf3a479bd1204f62eef7dd82b4aa328749ae6c91
Release Verification
- npm
2026.3.7remains vulnerable. - npm
2026.3.8contains the completed fix.
Thanks @tdjackey for reporting.
- Record
GHSA-8g75-q649-6pv6- CVSS 3.1
- 6.3 Medium
CVSS: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 Medium
CVSS: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 Medium
CVSS: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 Medium
CVSS: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 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 5.0 Medium
CVSS: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 Medium
CVSS: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)
c76d29208bf6a7f058d2cf582519d28069e42240cf3a479bd1204f62eef7dd82b4aa328749ae6c91
Release Verification
- npm
2026.3.7remains vulnerable. - npm
2026.3.8contains the completed fix.
Thanks @tdjackey for reporting.
- Record
GHSA-8g75-q649-6pv6- CVSS 3.1
- 6.3 Medium
CVSS: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 Medium
CVSS: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 Medium
CVSS: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
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-32921 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
github.com/openclaw/openclaw/security/advisories/GHSA-8g75-q649-6pv6
github.com/openclaw/openclaw/commit/c76d29208bf6a7f058d2cf582519d28069e42240
github.com/openclaw/openclaw/commit/cf3a479bd1204f62eef7dd82b4aa328749ae6c91
vulncheck.com/advisories/openclaw-script-content-modification-via-mutable-operand-binding-in-system-run
nvd.nist.gov/vuln/detail/CVE-2026-32921
github.com/advisories/GHSA-8g75-q649-6pv6
github.com/advisories/GHSA-wwrj-437c-ppq4
github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32921.json
github.com/openclaw/openclaw