{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-0257", "assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "state": "PUBLISHED", "assignerShortName": "palo_alto", "dateReserved": "2025-11-03T20:44:17.691Z", "datePublished": "2026-05-13T18:15:10.172Z", "dateUpdated": "2026-07-14T12:45:06.981Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "shortName": "palo_alto", "dateUpdated": "2026-05-29T17:20:05.451Z" }, "title": "PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities", "datePublic": "2026-05-13T16:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-565", "description": "CWE-565 Reliance on Cookies without Validation and Integrity Checking", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-114", "descriptions": [ { "lang": "en", "value": "CAPEC-114 Authentication Abuse" } ] } ], "affected": [ { "vendor": "Palo Alto Networks", "product": "Cloud 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"cpe:2.3:a:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.2.0", "versionEndExcluding": "10.2.18-h6_10.2.16-h7_10.2.13-h21_10.2.10-h36_10.2.7-h34" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:palo_alto_networks:prisma_access:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.2.0", "versionEndExcluding": "10.2.10-h36" }, { "vulnerable": true, "criteria": "cpe:2.3:a:palo_alto_networks:prisma_access:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.2.0", "versionEndExcluding": "11.2.7-h13" } ] } ] } ], "descriptions": [ { "lang": "en", "value": "Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.\n\nPanorama and Cloud NGFW are not impacted by these issues.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.
Panorama and Cloud NGFW are not impacted by these issues.
This issue affects firewalls with GlobalProtect portal or gateway configured when authentication override cookies are enabled and a specific certificate configuration exists. To check if authentication cookies are enabled follow the steps below:
On the Portal:
1. Navigate to Network > GlobalProtect > Portals in the management interface.
2. Click on your Portal Name and go to the Agent tab.
3. Click on your Agent Configuration profile.
4. Go to the Authentication tab.
5. Generate cookie for authentication override or Accept cookie for authentication override options are checked.
Customers can mitigate the risk of this issue by taking any of the following actions:
| Version | Minor Version | Suggested Solution |
|---|---|---|
| Cloud NGFW All | No action needed. | |
| PAN-OS 12.1 | \n 12.1.5 through 12.1.6 | \nUpgrade to 12.1.7 or later. | \n
| \n | 12.1.2 through 12.1.4-h* | \nUpgrade to 12.1.4-h6 or 12.1.7 or later. | \n
| PAN-OS 11.2 | \n 11.2.11 or later | \nUpgrade to 11.2.12 or later. | \n
| \n | 11.2.8 through 11.2.10-h* | \nUpgrade to 11.2.10-h7 or 11.2.12 or later. | \n
| \n | 11.2.5 through 11.2.7-h* | \nUpgrade to 11.2.7-h14 or 11.2.12 or later. | \n
| \n | 11.2.0 through 11.2.4-h* | \nUpgrade to 11.2.4-h17 or 11.2.12 or later. | \n
| PAN-OS 11.1 | \n 11.1.14 or later | \nUpgrade to 11.1.15 or later. | \n
| \n | 11.1.11 through 11.1.13-h* | \nUpgrade to 11.1.13-h5 or 11.1.15 or later. | \n
| \n | 11.1.8 through 11.1.10-h* | \nUpgrade to 11.1.10-h25 or 11.1.15 or later. | \n
| \n | 11.1.7 through 11.1.7-h* | \nUpgrade to 11.1.7-h6 or 11.1.15 or later. | \n
| \n | 11.1.5 through 11.1.6-h* | \nUpgrade to 11.1.6-h32 or 11.1.15 or later. | \n
| \n | 11.1.0 through 11.1.4-h* | \nUpgrade to 11.1.4-h33 or 11.1.15 or later. | \n
| PAN-OS 10.2 | \n 10.2.17 through 10.2.18-h* | \nUpgrade to 10.2.18 or 10.2.18-h6 or later. | \n
| \n | 10.2.14 through 10.2.16-h* | \nUpgrade to 10.2.16-h7 or 10.2.18 or later. | \n
| \n | 10.2.11 through 10.2.13-h* | \nUpgrade to 10.2.13-h21 or 10.2.18 or later. | \n
| \n | 10.2.8 through 10.2.10-h* | \nUpgrade to 10.2.10-h36 or 10.2.18 or later. | \n
| \n | 10.2.0 through 10.2.7-h* | \nUpgrade to 10.2.7-h34 or 10.2.18 or later. | \n
| All older unsupported PAN-OS versions | Upgrade to a supported fixed version. | |
| Prisma Access 10.2 | \n 10.2.0 through 10.2.10-h* | \nUpgrade to 10.2.10-h36 or later. | \n
| Prisma Access 11.2 | \n 11.2.0 through 11.2.7-h* | \nUpgrade to 11.2.7-h13 or later. |
Palo Alto Networks has become aware of limited exploit attempts on unpatched PAN-OS devices without mitigations applied.
" } ] } ], "timeline": [ { "time": "2026-05-13T16:00:00.000Z", "lang": "en", "value": "Initial publication." }, { "time": "2026-05-29T17:15:00.000Z", "lang": "en", "value": "Updated exploitation status." } ], "credits": [ { "lang": "en", "value": "Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue.", "type": "other" } ], "source": { "discovery": "INTERNAL" }, "x_generator": { "engine": "Vulnogram 0.1.0-dev" }, "x_affectedList": [ "PAN-OS 12.1.6", "PAN-OS 12.1.5", "PAN-OS 12.1.4-h3", "PAN-OS 12.1.4-h2", "PAN-OS 12.1.4", "PAN-OS 12.1.3-h3", "PAN-OS 12.1.3-h1", "PAN-OS 12.1.3", "PAN-OS 12.1.2", "PAN-OS 11.2.11", "PAN-OS 11.2.10-h4", "PAN-OS 11.2.10-h3", "PAN-OS 11.2.10-h2", "PAN-OS 11.2.10-h1", "PAN-OS 11.2.10", "PAN-OS 11.2.9", "PAN-OS 11.2.8", "PAN-OS 11.2.7-h11", "PAN-OS 11.2.7-h10", "PAN-OS 11.2.7-h8", "PAN-OS 11.2.7-h7", "PAN-OS 11.2.7-h4", "PAN-OS 11.2.7-h3", "PAN-OS 11.2.7-h2", "PAN-OS 11.2.7-h1", "PAN-OS 11.2.7", "PAN-OS 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"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0257", "tags": [ "government-resource" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-28T00:00:00+00:00", "options": [ { "Exploitation": "active" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-0257" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2026-05-29", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0257" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-30T03:55:17.629Z" }, "timeline": [ { "time": "2026-05-29T00:00:00.000Z", "lang": "en", "value": "CVE-2026-0257 added to CISA KEV" } ] }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:45:06.981Z" }, "affected": [ { "vendor": "Siemens", "product": "RUGGEDCOM APE1808", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-967325.html" } ] } ] } }