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GHSA-7jx5-9fjg-hp4m

MediumCVSS 5.4 / 10
Published Feb 27, 2026·Last modified Mar 30, 2026
Affected Components(0)

No affected components available

Description

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 is 2026.2.22-2)
  • Patched in code on main: 2026.2.23 (released)

Technical Details

  • Permission classification trusted incoming toolCall.kind and heuristic name matching.
  • Non-core read-like names and spoofed kind metadata could reach auto-approve paths.
  • read operations 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.kind as an authorization source.
  • Scope read auto-approval to cwd-resolved paths.
  • Add stricter tool-name validation and regression coverage for spoofed kind and non-core read-like names.

Affected Functions

  • resolvePermissionRequest
  • resolveToolNameForPermission
  • shouldAutoApproveToolCall

Fix Commit(s)

  • 12cc754332f9a7c92e158ce7644aa22df79c0904
  • 63dcd28ae0be2de1c75af09cc81841cebeec068f

Found using MCPwner

Thanks @nedlir for reporting.

Risk Scores
Base Score
5.4

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
5.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.26%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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