Vulnerability-Lookup

GHSA-47RQ-88XV-GPXV

Vulnerability from github – Published: 2026-05-10 00:33 – Updated: 2026-05-10 00:33

Details

GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the "Block connections without VPN" and "Always-on VPN" settings are enabled.

Severity ?

2.2 (Low)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45182"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-441"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-09T23:16:32Z",
    "severity": "LOW"
  },
  "details": "GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the \"Block connections without VPN\" and \"Always-on VPN\" settings are enabled.",
  "id": "GHSA-47rq-88xv-gpxv",
  "modified": "2026-05-10T00:33:20Z",
  "published": "2026-05-10T00:33:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45182"
    },
    {
      "type": "WEB",
      "url": "https://cyberinsider.com/grapheneos-fixes-android-vpn-leak-google-refused-to-patch"
    },
    {
      "type": "WEB",
      "url": "https://grapheneos.org/releases#2026050400"
    },
    {
      "type": "WEB",
      "url": "https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-45182 (GCVE-0-2026-45182)

Vulnerability from cvelistv5 – Published: 2026-05-09 22:07 – Updated: 2026-05-11 15:00

Summary

Severity ?

2.2 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

CWE

CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')

Assigner

mitre

References

3 references

URL	Tags
https://lowlevel.fun/posts/tiny-udp-cannon-androi…
https://grapheneos.org/releases#2026050400
https://cyberinsider.com/grapheneos-fixes-android…

Impacted products

1 product

Vendor	Product	Version
GrapheneOS	GrapheneOS	Affected: 0 , < 2026050400 (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-45182",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-11T15:00:11.708239Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-11T15:00:48.072Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "GrapheneOS",
          "vendor": "GrapheneOS",
          "versions": [
            {
              "lessThan": "2026050400",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the \"Block connections without VPN\" and \"Always-on VPN\" settings are enabled."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.2,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-441",
              "description": "CWE-441 Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-09T22:12:55.615Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/"
        },
        {
          "url": "https://grapheneos.org/releases#2026050400"
        },
        {
          "url": "https://cyberinsider.com/grapheneos-fixes-android-vpn-leak-google-refused-to-patch/"
        }
      ],
      "x_generator": {
        "engine": "CVE-Request-form 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-45182",
    "datePublished": "2026-05-09T22:07:59.122Z",
    "dateReserved": "2026-05-09T22:07:58.636Z",
    "dateUpdated": "2026-05-11T15:00:48.072Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-47RQ-88XV-GPXV

CVE-2026-45182 (GCVE-0-2026-45182)

Tags

Sightings

Nomenclature