OpenClaw ACP client has permission auto-approval bypass via untrusted tool metadata
Vulnerability Summary
The OpenClaw ACP client could auto-approve tool calls based on untrusted metadata and permissive name heuristics. A malicious or compromised ACP tool invocation could bypass expected interactive approval prompts for read-class operations.
Affected Packages / Versions
- Package: npm
openclaw - Affected published versions:
<= 2026.2.22-2(latest published as of February 24, 2026 is2026.2.22-2) - Patched in code on
main:2026.2.23(released)
Technical Details
- Permission classification trusted incoming
toolCall.kindand heuristic name matching. - Non-core read-like names and spoofed kind metadata could reach auto-approve paths.
readoperations were not scoped strongly enough to cwd in all metadata/title forms.
Fix
- Require trusted core tool IDs for auto-approval and ignore untrusted
toolCall.kindas an authorization source. - Scope
readauto-approval to cwd-resolved paths. - Add stricter tool-name validation and regression coverage for spoofed kind and non-core read-like names.
Affected Functions
resolvePermissionRequestresolveToolNameForPermissionshouldAutoApproveToolCall
Fix Commit(s)
12cc754332f9a7c92e158ce7644aa22df79c090463dcd28ae0be2de1c75af09cc81841cebeec068f
Found using MCPwner
Thanks @nedlir for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.2.23 | 2026.2.23 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-7jx5-9fjg-hp4m
- https://nvd.nist.gov/vuln/detail/CVE-2026-32898
- https://github.com/openclaw/openclaw/commit/12cc754332f9a7c92e158ce7644aa22df79c0904
- https://github.com/openclaw/openclaw/commit/63dcd28ae0be2de1c75af09cc81841cebeec068f
- https://github.com/openclaw/openclaw
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.23
- https://www.vulncheck.com/advisories/openclaw-acp-permission-auto-approval-bypass-via-untrusted-tool-metadata
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-639, CWE-863- Platform
- npm
- Package
openclaw- Disclosed
- 27.02.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7jx5-9fjg-hp4m - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 589
- First → latest
- 02.2026 10.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 300
- Low 54
Disclosures per year
- 2026: 589
-
OpenClaw ACP client has permission auto-approval bypass via untrusted tool metadata this entry
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