# CVE-2026-0331: PAN-OS: Sensitive Information Disclosure Vulnerability Status: published. Published: 2026-11-11. Updated: 2026-11-11. An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated remote attacker with network access to obtain sensitive firewall and session information by sending traffic to or through a dataplane interface. Panorama is not affected by this vulnerability. ## Remediation - fix: 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 12.2 12.2.0 through 12.2.4-h* Upgrade to 12.2.4-h2 or later. PAN-OS 12.1 12.1.8 through 12.1.10-h* Upgrade to 12.1.10-h4 or later. 12.1.5 through 12.1.7-h* Upgrade to 12.1.7-h12 or later. 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h14 or later. PAN-OS 11.2 11.2.15 through 11.2.16-h* Upgrade to 11.2.16-h2 or later. 11.2.11 through 11.2.13-h* Upgrade to 11.2.13-h5 or 11.2.16-h2 or later. 11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h18 or 11.2.16-h2 or later. 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h24 or 11.2.16-h2 or later. 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h24 or 11.2.16-h2 or later. PAN-OS 11.1 11.1.14 through 11.1.16-h* Upgrade to 11.1.16-h5 or later. 11.1.11 through 11.1.13-h* Upgrade to 11.1.13-h17 or 11.1.16-h5 or later. 11.1.8 through 11.1.10-h* Upgrade to 11.1.10-h37 or 11.1.16-h5 or later. 11.1.7 through 11.1.7-h* Upgrade to 11.1.7-h13 or 11.1.16-h5 or later. 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h41 or 11.1.16-h5 or later. 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h39 or 11.1.16-h5 or later. PAN-OS 10.2 10.2.17 through 10.2.18-h* Upgrade to 10.2.18-h14 or later. 10.2.14 through 10.2.16-h* Upgrade to 10.2.16-h13 or 10.2.18-h14 or later. 10.2.11 through 10.2.13-h* Upgrade to 10.2.13-h28 or 10.2.18-h14 or later. 10.2.8 through 10.2.10-h* Upgrade to 10.2.10-h43 or 10.2.18-h14 or later. 10.2.0 through 10.2.7-h* Upgrade to 10.2.7-h40 or 10.2.18-h14 or later. All older Upgrade to a supported fixed version. unsupported PAN-OS versions Prisma Access 12.1 12.1.2 through 12.1.10-h* Upgrade to 12.1.10-h4 or later. Prisma Access 11.2 11.2.0 through 11.2.7-h* Upgrade to 11.2.7-h24 or later. Prisma Access 10.2 10.2.0 through 10.2.10-h* Upgrade to 10.2.10-h43 or later. * See the note under Product Status for information regarding Prisma Access upgrades. (source: CNA: palo_alto) - workaround: No known workarounds exist for this issue. (source: CNA: palo_alto) ## Affected products and versions - Palo Alto Networks / Cloud NGFW: All (affected, custom). Source: CNA: palo_alto - Palo Alto Networks / PAN-OS: ≥ 12.2.0; < 12.2.4-h2 (affected, custom); unaffected at 12.2.4-h2; ≥ 12.1.0; < 12.1.10-h4 (affected, custom); unaffected at 12.1.10-h4; unaffected at 12.1.7-h12; unaffected at 12.1.4-h14; ≥ 11.2.0; < 11.2.16-h2 (affected, custom); unaffected at 11.2.16-h2; unaffected at 11.2.13-h5; unaffected at 11.2.10-h18; unaffected at 11.2.7-h24; unaffected at 11.2.4-h24; ≥ 11.1.0; < 11.1.16-h5 (affected, custom); unaffected at 11.1.16-h5; unaffected at 11.1.13-h17; unaffected at 11.1.10-h37; unaffected at 11.1.7-h13; unaffected at 11.1.6-h41; unaffected at 11.1.4-h39; ≥ 10.2.0; < 10.2.18-h14 (affected, custom); unaffected at 10.2.18-h14; unaffected at 10.2.16-h13; unaffected at 10.2.13-h28; unaffected at 10.2.10-h43; unaffected at 10.2.7-h40. Source: CNA: palo_alto - Palo Alto Networks / Prisma Access: ≥ 12.1.0; < 12.1.10-h4 (affected, custom); unaffected at 12.1.10-h4; ≥ 11.2.0; < 11.2.7-h24 (affected, custom); unaffected at 11.2.7-h24; ≥ 10.2.0; < 10.2.10-h43 (affected, custom); unaffected at 10.2.10-h43. Source: CNA: palo_alto ## Severity and prioritization - CVSS 4.0: 6.6 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber; source: CNA: palo_alto - CVSS 4.0: 4.6 (medium); CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber; source: CNA: palo_alto - CISA KEV: No listing in collected sources - EPSS: Not available - SSVC: Not available - Weaknesses: CWE-200 ## Exploit evidence No exploit evidence in collected sources. This is not proof of no exploitation. ## References - https://security.paloaltonetworks.com/CVE-2026-0331 (CNA: palo_alto; vendor-advisory) ## Provenance - CNA: palo_alto: https://www.cve.org/CVERecord?id=CVE-2026-0331; retrieved 2026-11-11; source updated 2026-11-11 Revision: 8f95cb2dbc451f75166bed7ed3e45f19a9d0e5e07c1939b95d650b5d16b2c3c5 Canonical: https://y2.dev/cve/CVE-2026-0331 ## Agent and API access Public CVE pages, Markdown, and JSON are free to read without an account or API key. - Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end. - WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers. - Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}. - Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer . 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