{"id":"CVE-2026-32898","aliases":["EUVD-2026-13976","GHSA-7jx5-9fjg-hp4m"],"status":"published","title":"OpenClaw \u003c 2026.2.23 - ACP Permission Auto-Approval Bypass via Untrusted Tool Metadata","description":"OpenClaw versions prior to 2026.2.23 contain an authorization bypass vulnerability in the ACP client that auto-approves tool calls based on untrusted toolCall.kind metadata and permissive name heuristics. Attackers can bypass interactive approval prompts for read-class operations by spoofing tool metadata or using non-core read-like names to reach auto-approve paths.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00268,"percentile":0.19058,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-639","CWE-807","CWE-863"],"published":"2026-02-27T22:08:36Z","modified":"2026-10-28T02:30:56Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.23"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.2.22-2"},{"fixed":"2026.2.23"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.23"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-7jx5-9fjg-hp4m","tags":["vendor-advisory","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/12cc754332f9a7c92e158ce7644aa22df79c0904","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/63dcd28ae0be2de1c75af09cc81841cebeec068f","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-acp-permission-auto-approval-bypass-via-untrusted-tool-metadata","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.23","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32898","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7jx5-9fjg-hp4m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32898.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-32898","title":"OpenClaw \u003c 2026.2.23 - ACP Permission Auto-Approval Bypass via Untrusted Tool Metadata","description":"OpenClaw versions prior to 2026.2.23 contain an authorization bypass vulnerability in the ACP client that auto-approves tool calls based on untrusted toolCall.kind metadata and permissive name heuristics. Attackers can bypass interactive approval prompts for read-class operations by spoofing tool metadata or using non-core read-like names to reach auto-approve paths.","status":"published","published":"2026-03-21T00:42:33.718Z","modified":"2026-06-23T16:15:13.721Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-807"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-13976","description":"OpenClaw versions prior to 2026.2.23 contain an authorization bypass vulnerability in the ACP client that auto-approves tool calls based on untrusted toolCall.kind metadata and permissive name heuristics. Attackers can bypass interactive approval prompts for read-class operations by spoofing tool metadata or using non-core read-like names to reach auto-approve paths.","status":"published","published":"2026-03-21T00:42:33Z","modified":"2026-06-23T16:15:13Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:32.273921Z"}],"ghsa":[{"id":"GHSA-7jx5-9fjg-hp4m","title":"OpenClaw ACP client has permission auto-approval bypass via untrusted tool metadata","description":"## Vulnerability Summary\n\nThe 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.\n\n## Affected Packages / Versions\n\n- Package: npm `openclaw`\n- Affected published versions: `\u003c= 2026.2.22-2` (latest published as of February 24, 2026 is `2026.2.22-2`)\n- Patched in code on `main`: `2026.2.23` (released)\n\n## Technical Details\n\n- Permission classification trusted incoming `toolCall.kind` and heuristic name matching.\n- Non-core read-like names and spoofed kind metadata could reach auto-approve paths.\n- `read` operations were not scoped strongly enough to cwd in all metadata/title forms.\n\n## Fix\n\n- Require trusted core tool IDs for auto-approval and ignore untrusted `toolCall.kind` as an authorization source.\n- Scope `read` auto-approval to cwd-resolved paths.\n- Add stricter tool-name validation and regression coverage for spoofed kind and non-core read-like names.\n\n## Affected Functions\n\n- `resolvePermissionRequest`\n- `resolveToolNameForPermission`\n- `shouldAutoApproveToolCall`\n\n## Fix Commit(s)\n\n- `12cc754332f9a7c92e158ce7644aa22df79c0904`\n- `63dcd28ae0be2de1c75af09cc81841cebeec068f`\n\nFound using [MCPwner](https://github.com/Pigyon/MCPwner)\n\n\nThanks @nedlir for reporting.","status":"published","published":"2026-02-27T22:08:36Z","modified":"2026-03-30T13:44:49Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-639","CWE-863"],"updated_at":"2026-11-02T14:39:46.119458Z"}],"nvd":[{"id":"CVE-2026-32898","description":"OpenClaw versions prior to 2026.2.23 contain an authorization bypass vulnerability in the ACP client that auto-approves tool calls based on untrusted toolCall.kind metadata and permissive name heuristics. Attackers can bypass interactive approval prompts for read-class operations by spoofing tool metadata or using non-core read-like names to reach auto-approve paths.","status":"published","published":"2026-03-21T01:17:10.87Z","modified":"2026-06-17T10:36:32.083Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-807"],"updated_at":"2026-11-02T14:12:10.126802Z"}],"osv":[{"id":"CVE-2026-32898","title":"OpenClaw \u003c 2026.2.23 - ACP Permission Auto-Approval Bypass via Untrusted Tool Metadata","description":"OpenClaw versions prior to 2026.2.23 contain an authorization bypass vulnerability in the ACP client that auto-approves tool calls based on untrusted toolCall.kind metadata and permissive name heuristics. Attackers can bypass interactive approval prompts for read-class operations by spoofing tool metadata or using non-core read-like names to reach auto-approve paths.","status":"published","published":"2026-03-21T00:42:33.718Z","modified":"2026-10-28T02:30:56.560979268Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-807"],"updated_at":"2026-11-02T15:45:01.548715Z"},{"id":"GHSA-7jx5-9fjg-hp4m","title":"OpenClaw ACP client has permission auto-approval bypass via untrusted tool metadata","description":"## Vulnerability Summary\n\nThe 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.\n\n## Affected Packages / Versions\n\n- Package: npm `openclaw`\n- Affected published versions: `\u003c= 2026.2.22-2` (latest published as of February 24, 2026 is `2026.2.22-2`)\n- Patched in code on `main`: `2026.2.23` (released)\n\n## Technical Details\n\n- Permission classification trusted incoming `toolCall.kind` and heuristic name matching.\n- Non-core read-like names and spoofed kind metadata could reach auto-approve paths.\n- `read` operations were not scoped strongly enough to cwd in all metadata/title forms.\n\n## Fix\n\n- Require trusted core tool IDs for auto-approval and ignore untrusted `toolCall.kind` as an authorization source.\n- Scope `read` auto-approval to cwd-resolved paths.\n- Add stricter tool-name validation and regression coverage for spoofed kind and non-core read-like names.\n\n## Affected Functions\n\n- `resolvePermissionRequest`\n- `resolveToolNameForPermission`\n- `shouldAutoApproveToolCall`\n\n## Fix Commit(s)\n\n- `12cc754332f9a7c92e158ce7644aa22df79c0904`\n- `63dcd28ae0be2de1c75af09cc81841cebeec068f`\n\nFound using [MCPwner](https://github.com/Pigyon/MCPwner)\n\n\nThanks @nedlir for reporting.","status":"published","published":"2026-02-27T22:08:36Z","modified":"2026-03-30T14:11:33.359385Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-639","CWE-863"],"updated_at":"2026-11-02T15:46:41.002603Z"}]}}