CVE-2026-35643 (GCVE-0-2026-35643)
Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-04-14 14:54 X_Open Source
VLAI?
Title
OpenClaw < 2026.3.22 - Arbitrary Code Execution via Unvalidated WebView JavascriptInterface
Summary
OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject arbitrary instructions. Untrusted pages can invoke the canvas bridge to execute malicious code within the Android application context.
Severity ?
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
Date Public ?
2026-03-24 00:00
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-35643",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-14T14:53:53.698094Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-14T14:54:05.741Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/openclaw",
"product": "OpenClaw",
"vendor": "OpenClaw",
"versions": [
{
"lessThan": "2026.3.22",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2026.3.22",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
"versionEndExcluding": "2026.3.22",
"vulnerable": true
}
],
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "cyjhhh"
}
],
"datePublic": "2026-03-24T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject arbitrary instructions. Untrusted pages can invoke the canvas bridge to execute malicious code within the Android application context."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-940",
"description": "CWE-940: Improper Verification of Source of a Communication Channel",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-10T16:03:11.209Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-cxmw-p77q-wchg)",
"tags": [
"third-party-advisory"
],
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg"
},
{
"name": "Patch Commit #1",
"tags": [
"patch"
],
"url": "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
},
{
"name": "Patch Commit #2",
"tags": [
"patch"
],
"url": "https://github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5"
},
{
"name": "VulnCheck Advisory: OpenClaw \u003c 2026.3.22 - Arbitrary Code Execution via Unvalidated WebView JavascriptInterface",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterface"
}
],
"tags": [
"x_open-source"
],
"title": "OpenClaw \u003c 2026.3.22 - Arbitrary Code Execution via Unvalidated WebView JavascriptInterface",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-35643",
"datePublished": "2026-04-10T16:03:11.209Z",
"dateReserved": "2026-04-04T12:30:33.464Z",
"dateUpdated": "2026-04-14T14:54:05.741Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-35643",
"date": "2026-05-05",
"epss": "0.00042",
"percentile": "0.12489"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-35643\",\"sourceIdentifier\":\"disclosure@vulncheck.com\",\"published\":\"2026-04-10T17:17:04.887\",\"lastModified\":\"2026-04-13T19:59:22.613\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject arbitrary instructions. Untrusted pages can invoke the canvas bridge to execute malicious code within the Android application context.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-940\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*\",\"versionEndExcluding\":\"2026.3.22\",\"matchCriteriaId\":\"80A4431B-25A7-43D7-9618-5E37E4359DB5\"}]}]}],\"references\":[{\"url\":\"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterface\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Third Party Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-35643\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-14T14:53:53.698094Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-14T14:53:59.642Z\"}}], \"cna\": {\"tags\": [\"x_open-source\"], \"title\": \"OpenClaw \u003c 2026.3.22 - Arbitrary Code Execution via Unvalidated WebView JavascriptInterface\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"cyjhhh\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 8.6, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"OpenClaw\", \"product\": \"OpenClaw\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2026.3.22\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"2026.3.22\", \"versionType\": \"semver\"}], \"packageURL\": \"pkg:npm/openclaw\", \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-03-24T00:00:00.000Z\", \"references\": [{\"url\": \"https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg\", \"name\": \"GitHub Security Advisory (GHSA-cxmw-p77q-wchg)\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87\", \"name\": \"Patch Commit #1\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5\", \"name\": \"Patch Commit #2\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterface\", \"name\": \"VulnCheck Advisory: OpenClaw \u003c 2026.3.22 - Arbitrary Code Execution via Unvalidated WebView JavascriptInterface\", \"tags\": [\"third-party-advisory\"]}], \"x_generator\": {\"engine\": \"vulncheck\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject arbitrary instructions. Untrusted pages can invoke the canvas bridge to execute malicious code within the Android application context.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-940\", \"description\": \"CWE-940: Improper Verification of Source of a Communication Channel\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2026.3.22\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2026-04-10T16:03:11.209Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-35643\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-14T14:54:05.741Z\", \"dateReserved\": \"2026-04-04T12:30:33.464Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-04-10T16:03:11.209Z\", \"assignerShortName\": \"VulnCheck\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…