Vulnerability-Lookup

GHSA-H3P8-5G8Q-VM3H

Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-05-13 21:32

Details

Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect™ 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.

Severity ?

4.9 (Medium)


                  
                    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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-0249"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-13T19:16:59Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-h3p8-5g8q-vm3h",
  "modified": "2026-05-13T21:32:05Z",
  "published": "2026-05-13T21:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0249"
    },
    {
      "type": "WEB",
      "url": "https://security.paloaltonetworks.com/CVE-2026-0249"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-0249 (GCVE-0-2026-0249)

Vulnerability from cvelistv5 – Published: 2026-05-13 18:32 – Updated: 2026-05-15 09:57

Title

GlobalProtect App: Certificate Validation Bypass Vulnerabilities

Summary

Severity ?

4.9 (Medium)


                        
                          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

CWE

CWE-295 - Improper Certificate Validation

Assigner

palo_alto

References

1 reference

URL	Tags
https://security.paloaltonetworks.com/CVE-2026-0249	vendor-advisory

Impacted products

4 products

Vendor	Product	Version
Palo Alto Networks	GlobalProtect App	Affected: 6.3.0 , < 6.3.3-h9 (6.3.3-999) (custom) Affected: 6.2.0 , < 6.2.8-h10 (6.2.8-948) (custom)
Palo Alto Networks	GlobalProtect App	Affected: 6.1.0 , < 6.1.13 (custom) Affected: 6.0.0 , < 6.0.14 (custom)
Palo Alto Networks	GlobalProtect App	Affected: 6.0.0 , < 6.0.13 (custom)
Palo Alto Networks	GlobalProtect App	Unaffected: All (custom)

Date Public ?

2026-05-13 16:00

Credits

Palo Alto Networks thanks Kakao Corp. Service Security Team and our internal security research teams for discovering and reporting this issue.

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H3P8-5G8Q-VM3H

CVE-2026-0249 (GCVE-0-2026-0249)

Tags

Sightings

Nomenclature