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CVE-2026-0268 (GCVE-0-2026-0268)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:40 – Updated: 2026-06-11 13:57
VLAI
Title
Prisma Access Agent: Local Authenticated VPN Enforcement Bypass on Linux
Summary
A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel. This does not impact Prisma Access Agent on Windows, macOS, iOS, Android, or ChromeOS.
Severity
4.4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 13:57 UTC
CWE
  • CWE-424 - Improper Protection of Alternate Path
Assigner
References
Impacted products
Vendor Product Version CPE status
Palo Alto Networks Prisma Access Agent Affected: 0 , < 26.2.1 (custom)
guessed Create a notification for this product.
Palo Alto Networks Prisma Access Agent Unaffected: All (custom)
guessed Create a notification for this product.
Date Public
2026-06-10 16:00
Credits
our internal security research teams
Show details on NVD website
To clipboard 

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                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "MODERATE"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-424",
                  "description": "CWE-424 Improper Protection of Alternate Path",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-10T20:40:11.198Z",
            "orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
            "shortName": "palo_alto"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://security.paloaltonetworks.com/CVE-2026-0268"
            }
          ],
          "solutions": [
            {
              "lang": "eng",
              "supportingMedia": [
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                  "value": "\u003ctable class=\"tbl\"\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eVersion\u003cbr\u003e\u003c/th\u003e\u003cth\u003eMinor Version\u003cbr\u003e\u003c/th\u003e\u003cth\u003eSuggested Solution\u003cbr\u003e\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\n                                    \u003ctd\u003ePrisma Access Agent   on Linux\u003cbr\u003e\u003c/td\u003e\n                                    \u003ctd\u003e25.7 through 26.2.0\u003c/td\u003e\n                                    \u003ctd\u003eUpgrade to 26.2.1 or later.\u003c/td\u003e\n                                \u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access Agent All on Windows\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access Agent All on macOS\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access Agent All on iOS\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access Agent All on Android\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access Agent All on Chrome OS\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e"
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              ],
              "value": "VERSION                                MINOR VERSION         SUGGESTED SOLUTION\nPrisma Access Agent on Linux           25.7 through 26.2.0   Upgrade to 26.2.1 or later.\nPrisma Access Agent All on Windows                           No action needed.\nPrisma Access Agent All on macOS                             No action needed.\nPrisma Access Agent All on iOS                               No action needed.\nPrisma Access Agent All on Android                           No action needed.\nPrisma Access Agent All on Chrome OS                         No action needed."
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "timeline": [
            {
              "lang": "en",
              "time": "2026-06-10T16:00:00.000Z",
              "value": "Initial publication."
            }
          ],
          "title": "Prisma Access Agent: Local Authenticated VPN Enforcement Bypass on Linux",
          "workarounds": [
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              "lang": "eng",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "There are no known workarounds for this issue."
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              ],
              "value": "There are no known workarounds for this issue."
            }
          ],
          "x_affectedList": [
            "Prisma Access Agent   26.2.0"
          ],
          "x_generator": {
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        }
      },
      "cveMetadata": {
        "assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
        "assignerShortName": "palo_alto",
        "cveId": "CVE-2026-0268",
        "datePublished": "2026-06-10T20:40:11.198Z",
        "dateReserved": "2025-11-03T20:44:28.362Z",
        "dateUpdated": "2026-06-11T13:57:54.692Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.