PAN-OS: Information Disclosure Vulnerability in URL Filtering
Summary
| CVE | CVE-2026-0301 |
|---|---|
| State | PUBLISHED |
| Assigner | palo_alto |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-13 03:16:46 UTC |
| Updated | 2026-08-18 15:04:46 UTC |
| Description | An information disclosure vulnerability in the URL Filtering feature of Palo Alto Networks PAN-OS® software enables an unauthenticated user with network access to obtain sensitive information. Panorama is not impacted by this vulnerability. |
Risk And Classification
Primary CVSS: v4.0 1.7 LOW from [email protected]
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:N/R:U/V:D/RE:M/U:Amber
EPSS: 0.003130000 probability, percentile 0.240460000 (date 2026-08-18)
Problem Types: CWE-908 | CWE-908 CWE-908 Use of Uninitialized Resource
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 1.7 | LOW | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/C... |
| 4.0 | CNA | CVSS | 1.7 | LOW | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/A... |
| 4.0 | CNA | CVSS | 0.5 | LOW | CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/A... |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:N/R:U/V:D/RE:M/U:Amber
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Palo Alto Networks | Cloud NGFW | affected All custom | AWS, Azure |
| CNA | Palo Alto Networks | PAN-OS | unaffected 12.1.0 custom | Not specified |
| CNA | Palo Alto Networks | PAN-OS | unaffected 11.2.0 custom | Not specified |
| CNA | Palo Alto Networks | PAN-OS | affected 11.1.0 11.1.16-h1 custom | Not specified |
| CNA | Palo Alto Networks | PAN-OS | affected 10.2.0 10.2.8 custom | Not specified |
| CNA | Palo Alto Networks | Prisma Access | unaffected 12.1.0 custom | Not specified |
| CNA | Palo Alto Networks | Prisma Access | unaffected 11.2.0 custom | Not specified |
| CNA | Palo Alto Networks | Prisma Access | affected 10.2.0 10.2.10 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| security.paloaltonetworks.com/CVE-2026-0301 | [email protected] | security.paloaltonetworks.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Jan Breig (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-08-12T16:00:00.000Z | Initial publication |
Solutions
CNA: Version Minor Version Suggested Solution Cloud NGFW*Customers who prefer to upgrade can work with Palo Alto Networks support to schedule an on-demand software upgrade.PAN-OS 12.1 12.1.2 through 12.1.6-h*No action needed.PAN-OS 11.2 11.2.0 through 11.2.12 No action needed. PAN-OS 11.1 11.1.0 through 11.1.16-h* Upgrade to 11.1.16-h1 or later. PAN-OS 10.2 10.2.0 through 10.2.* Upgrade to 10.2.8 or 11.1.16-h1 or later. All older unsupported PAN-OS versions Upgrade to a supported fixed version.Prisma Access 12.1 12.1.2 through 12.1.* No action needed.Prisma Access 11.2 11.2.0 through 11.2* No action needed. Prisma Access 10.2 10.2.0 through 10.2.* Upgrade to 10.2.10 or later. * See the note under Product Status for information regarding Prisma Access and Cloud NGFW upgrades.
Workarounds
CNA: Customers can mitigate this issue by limiting the Response Page Variables https://docs.paloaltonetworks.com/advanced-url-filtering/administration/url-filtering-features/url-filtering-response-pages/url-filtering-response-page-objects#idf281835b-ab7c-4553-93e2-46967443f9f9_id8313c239-3cf5-4bee-8909-e8e047b70b44 on their response page to only those in the Predefined URL Filtering Response Pages https://docs.paloaltonetworks.com/advanced-url-filtering/administration/url-filtering-features/url-filtering-response-pages/predefined-url-filtering-response-pages#ida9f33d58-e2ea-4a6f-9b4f-0ab42fd6921f . https://docs.paloaltonetworks.com/advanced-url-filtering/administration/url-filtering-features/url-filtering-response-pages/predefined-url-filtering-response-pages#ida9f33d58-e2ea-4a6f-9b4f-0ab42fd6921f The variables that are included in our predefined response pages (user, url, category, pan_form) are not impacted by this vulnerability.
Exploits
CNA: Palo Alto Networks is not aware of any malicious exploitation of this issue.