CVE-2026-94181 (GCVE-0-2026-94181)
Vulnerability from cvelistv5 – Published: 2026-09-23 18:55 – Updated: 2026-09-23 19:35
VLAI
EPSS
VEX
Title
Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element
Summary
An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a <select> element that triggers requestFullscreen without displaying the fullscreen notification.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:35 UTC
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| The Browser Company of New York | Arc |
Affected:
0 , < 1.159.0
(semver)
|
guessed |
Date Public
2026-09-23 18:48
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-94181",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:35:29.822010Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T19:35:35.801Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"MacOS"
],
"product": "Arc",
"vendor": "The Browser Company of New York",
"versions": [
{
"lessThan": "1.159.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"datePublic": "2026-09-23T18:48:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a \u003ccode\u003e\u0026lt;select\u0026gt;\u003c/code\u003e element that triggers requestFullscreen without displaying the fullscreen notification."
}
],
"value": "An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a \u003cselect\u003e element that triggers requestFullscreen without displaying the fullscreen notification."
}
],
"impacts": [
{
"capecId": "CAPEC-148",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-148 Content Spoofing"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-451",
"description": "CWE-451 User Interface (UI) Misrepresentation of Critical Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T18:55:08.973Z",
"orgId": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"shortName": "BCNY"
},
"references": [
{
"url": "https://hackerone.com/reports/3711701"
},
{
"url": "https://arc.net/security/bulletins#cve-2026-94181-address-bar-spoof-risk-missing-fullscreen-notification-via-select-element"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"assignerShortName": "BCNY",
"cveId": "CVE-2026-94181",
"datePublished": "2026-09-23T18:55:08.973Z",
"dateReserved": "2026-09-21T00:50:04.410Z",
"dateUpdated": "2026-09-23T19:35:35.801Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-94181",
"date": "2026-09-30",
"epss": "0.0026",
"percentile": "0.16008"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"platforms": [
"MacOS"
],
"product": "Arc",
"vendor": "The Browser Company of New York",
"versions": [
{
"lessThan": "1.159.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a \u003cselect\u003e element that triggers requestFullscreen without displaying the fullscreen notification."
}
],
"id": "CVE-2026-94181",
"lastModified": "2026-09-24T19:36:39.327",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 4.0,
"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-94181",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:35:29.822010Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-23T19:19:48.763",
"references": [
{
"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"url": "https://arc.net/security/bulletins#cve-2026-94181-address-bar-spoof-risk-missing-fullscreen-notification-via-select-element"
},
{
"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"url": "https://hackerone.com/reports/3711701"
}
],
"sourceIdentifier": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-451"
}
],
"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-94181",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:35:29.822010Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T19:35:33.654Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"MacOS"
],
"product": "Arc",
"vendor": "The Browser Company of New York",
"versions": [
{
"lessThan": "1.159.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"datePublic": "2026-09-23T18:48:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a \u003ccode\u003e\u0026lt;select\u0026gt;\u003c/code\u003e element that triggers requestFullscreen without displaying the fullscreen notification."
}
],
"value": "An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a \u003cselect\u003e element that triggers requestFullscreen without displaying the fullscreen notification."
}
],
"impacts": [
{
"capecId": "CAPEC-148",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-148 Content Spoofing"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-451",
"description": "CWE-451 User Interface (UI) Misrepresentation of Critical Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T18:55:08.973Z",
"orgId": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"shortName": "BCNY"
},
"references": [
{
"url": "https://hackerone.com/reports/3711701"
},
{
"url": "https://arc.net/security/bulletins#cve-2026-94181-address-bar-spoof-risk-missing-fullscreen-notification-via-select-element"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "59469e6c-7ea7-446f-8e43-06aa32c115e8",
"assignerShortName": "BCNY",
"cveId": "CVE-2026-94181",
"datePublished": "2026-09-23T18:55:08.973Z",
"dateReserved": "2026-09-21T00:50:04.410Z",
"dateUpdated": "2026-09-23T19:35:35.801Z",
"state": "PUBLISHED"
},
"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…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…