CVE-2026-41398

OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats generic local-network pages as trusted origins. Attackers can inject unauthorized agent.request runs by loading attacker-controlled pages from local-network or tailnet hosts, polluting session state and consuming budget.

CVSS v3 4.6 MEDIUM

4.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 2.5

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/commit/49d08382a90f71dabe2877b3f6729ad85f808d57	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-4p4f-fc8q-84m3	Patch Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-unauthorized-agent-request-dispatch-via-untrusted-local-network-pages-in-ios-a2ui-bridge	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

History

30 Apr 2026, 16:56

Type	Values Removed	Values Added
First Time		Openclaw openclaw Openclaw
References	~~() https://github.com/openclaw/openclaw/commit/49d08382a90f71dabe2877b3f6729ad85f808d57 -~~	() https://github.com/openclaw/openclaw/commit/49d08382a90f71dabe2877b3f6729ad85f808d57 - Patch
References	~~() https://github.com/openclaw/openclaw/security/advisories/GHSA-4p4f-fc8q-84m3 -~~	() https://github.com/openclaw/openclaw/security/advisories/GHSA-4p4f-fc8q-84m3 - Patch, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/openclaw-unauthorized-agent-request-dispatch-via-untrusted-local-network-pages-in-ios-a2ui-bridge -~~	() https://www.vulncheck.com/advisories/openclaw-unauthorized-agent-request-dispatch-via-untrusted-local-network-pages-in-ios-a2ui-bridge - Third Party Advisory
CPE		cpe:2.3:a:openclaw:openclaw::::::node.js::*

28 Apr 2026, 19:37

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-28 19:37

Updated : 2026-04-30 16:56

NVD link : CVE-2026-41398

Mitre link : CVE-2026-41398

CVE.ORG link : CVE-2026-41398

JSON object : View

Products Affected

openclaw

openclaw

CWE

CWE-346

Origin Validation Error

{"id": "CVE-2026-41398", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.6, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 2.1}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.1, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-04-28T19:37:43.287", "references": [{"url": "https://github.com/openclaw/openclaw/commit/49d08382a90f71dabe2877b3f6729ad85f808d57", "tags": ["Patch"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4p4f-fc8q-84m3", "tags": ["Patch", "Vendor Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/openclaw-unauthorized-agent-request-dispatch-via-untrusted-local-network-pages-in-ios-a2ui-bridge", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-346"}]}], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats generic local-network pages as trusted origins. Attackers can inject unauthorized agent.request runs by loading attacker-controlled pages from local-network or tailnet hosts, polluting session state and consuming budget."}], "lastModified": "2026-04-30T16:56:42.403", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "9E93D9F1-C6FA-4AEE-AC8B-27CDEE77637C", "versionEndExcluding": "2026.4.2"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}