{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-0249", "assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "state": "PUBLISHED", "assignerShortName": "palo_alto", "dateReserved": "2025-11-03T20:44:09.928Z", "datePublished": "2026-05-13T18:32:12.091Z", "dateUpdated": "2026-05-15T09:57:30.206Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "shortName": "palo_alto", "dateUpdated": "2026-05-13T18:32:12.091Z"}, "title": "GlobalProtect App: Certificate Validation Bypass Vulnerabilities", "datePublic": "2026-05-13T16:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-295", "description": "CWE-295 Improper Certificate Validation", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-94", "descriptions": [{"lang": "en", "value": "CAPEC-94 Adversary in the Middle (AiTM)"}]}], "affected": [{"vendor": "Palo Alto Networks", "product": "GlobalProtect App", "platforms": ["macOS"], "versions": [{"status": "affected", "version": "6.3.0", "lessThan": "6.3.3-h9 (6.3.3-999)", "changes": [{"at": "6.3.3-h9 (6.3.3-999)", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "6.2.0", "lessThan": "6.2.8-h10 (6.2.8-948)", "changes": [{"at": "6.2.8-h10 (6.2.8-948)", "status": "unaffected"}], "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Palo Alto Networks", "product": "GlobalProtect App", "platforms": ["Android", "ChromeOS"], "versions": [{"status": "affected", "version": "6.1.0", "lessThan": "6.1.13", "changes": [{"at": "6.1.13", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "6.0.0", "lessThan": "6.0.14", "changes": [{"at": "6.0.14", "status": "unaffected"}], "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Palo Alto Networks", "product": "GlobalProtect App", "platforms": ["macOS"], "versions": [{"status": "affected", "version": "6.0.0", "lessThan": "6.0.13", "changes": [{"at": "6.0.13", "status": "unaffected"}], "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Palo Alto Networks", "product": "GlobalProtect App", "platforms": ["Windows", "Linux", "iOS", "Windows UWP"], "versions": [{"status": "unaffected", "version": "All", "versionType": "custom"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:macOS:*:*", "versionEndExcluding": "6.3.3-h9_(6.3.3-999)", "versionStartIncluding": "6.3.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:macOS:*:*", "versionEndExcluding": "6.2.8-h10_(6.2.8-948)", "versionStartIncluding": "6.2.8", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:Android:*:*", "versionEndExcluding": "6.1.13", "versionStartIncluding": "6.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:ChromeOS:*:*", "versionEndExcluding": "6.1.13", "versionStartIncluding": "6.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:Android:*:*", "versionEndExcluding": "6.0.14", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:ChromeOS:*:*", "versionEndExcluding": "6.0.14", "versionStartIncluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:palo_alto_networks:globalprotect_app:*:*:*:*:*:macOS:*:*", "versionEndExcluding": "6.0.13", "versionStartIncluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "descriptions": [{"lang": "en", "value": "Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect\u2122 app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software.\n\nThe GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "

Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect\u2122 app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software.

The GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.

"}]}], "references": [{"url": "https://security.paloaltonetworks.com/CVE-2026-0249", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "UNREPORTED", "Safety": "NOT_DEFINED", "Automatable": "NO", "Recovery": "USER", "valueDensity": "DIFFUSE", "vulnerabilityResponseEffort": "MODERATE", "providerUrgency": "AMBER", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 4.9, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber"}}], "configurations": [{"lang": "eng", "value": "The issue is applicable to the GlobalProtect app on macOS only if SAML authentication with an embedded browser is enabled (https://docs.paloaltonetworks.com/globalprotect/administration/globalprotect-user-authentication/set-up-external-authentication/set-up-saml-authentication/enable-default-browser-for-saml-authentication-using-client-authentication-settings). No special configuration is required for the GlobalProtect app on Android/Chrome OS to be affected by this issue.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "

The issue is applicable to the GlobalProtect app on macOS only if SAML authentication with an embedded browser is enabled. No special configuration is required for the GlobalProtect app on Android/Chrome OS to be affected by this issue.

"}]}], "workarounds": [{"lang": "eng", "value": "No known workarounds exist for this issue.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "

No known workarounds exist for this issue.

"}]}], "solutions": [{"lang": "eng", "value": "Version Minor Version Suggested Solution\nGlobalProtect App 6.1 on Android 6.1.0 through 6.1.12 Upgrade to 6.1.13 or later.\nGlobalProtect App 6.0 on Android 6.0.0 through 6.0.13 Upgrade to 6.0.14 or later.\nGlobalProtect App 6.1 on Chrome OS 6.1.0 through 6.1.12 Upgrade to 6.1.13 or later.\nGlobalProtect App 6.0 on Chrome OS 6.0.0 through 6.0.13 Upgrade to 6.0.14 or later.\nGlobalProtect App 6.3 on macOS 6.3.0 through 6.3.3-h8 Upgrade to 6.3.3-h9 (6.3.3-999) or later.\nGlobalProtect App 6.2 on macOS 6.2.0 through 6.2.8-h9 Upgrade to 6.2.8-h10 (6.2.8-948) or later.\nGlobalProtect App 6.0 on macOS 6.0.0 through 6.0.12 Upgrade to 6.0.13 or later.\nGlobalProtect App on Windows No action needed.\nGlobalProtect App on Linux No action needed.\nGlobalProtect App on iOS No action needed.\nGlobalProtect App on UWP No action needed.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "
VersionMinor VersionSuggested Solution
GlobalProtect App 6.1 on Android6.1.0 through 6.1.12Upgrade to 6.1.13 or later.
GlobalProtect App 6.0 on Android6.0.0 through 6.0.13Upgrade to 6.0.14 or later.
GlobalProtect App 6.1 on Chrome OS6.1.0 through 6.1.12Upgrade to 6.1.13 or later.
GlobalProtect App 6.0 on Chrome OS6.0.0 through 6.0.13Upgrade to 6.0.14 or later.
GlobalProtect App 6.3 on macOS6.3.0 through 6.3.3-h8Upgrade to 6.3.3-h9 (6.3.3-999) or later.
GlobalProtect App 6.2 on macOS6.2.0 through 6.2.8-h9Upgrade to 6.2.8-h10 (6.2.8-948) or later.
GlobalProtect App 6.0 on macOS6.0.0 through 6.0.12Upgrade to 6.0.13 or later.
GlobalProtect App on Windows
No action needed.
GlobalProtect App on Linux
No action needed.
GlobalProtect App on iOS
No action needed.
GlobalProtect App on UWP
No action needed.
"}]}], "exploits": [{"lang": "en", "value": "Palo Alto Networks is not aware of any malicious exploitation of these issues.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "

Palo Alto Networks is not aware of any malicious exploitation of these issues.

"}]}], "timeline": [{"time": "2026-05-13T16:00:00.000Z", "lang": "en", "value": "Initial publication."}], "credits": [{"lang": "en", "value": "Palo Alto Networks thanks Kakao Corp. Service Security Team and our internal security research teams for discovering and reporting this issue.", "type": "other"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-15T03:56:08.016080Z", "id": "CVE-2026-0249", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-15T09:57:30.206Z"}}]}}