Common Weakness Enumeration

CWE-201

Allowed

Insertion of Sensitive Information Into Sent Data

Abstraction: Base · Status: Draft

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

894 vulnerabilities reference this CWE, most recent first.

GHSA-WPPJ-V3G8-H62V

Vulnerability from github – Published: 2026-09-07 18:31 – Updated: 2026-09-07 18:31
VLAI
Details

In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed a project administrator to exfiltrate stored mailbox credentials

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-86497"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-07T17:17:28Z",
    "severity": "MODERATE"
  },
  "details": "In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed a project administrator to exfiltrate stored mailbox credentials",
  "id": "GHSA-wppj-v3g8-h62v",
  "modified": "2026-09-07T18:31:33Z",
  "published": "2026-09-07T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86497"
    },
    {
      "type": "WEB",
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WQ23-6P2Q-RGC7

Vulnerability from github – Published: 2026-01-22 18:30 – Updated: 2026-04-23 18:32
VLAI
Details

Insertion of Sensitive Information Into Sent Data vulnerability in Johan Jonk Stenström Cookies and Content Security Policy cookies-and-content-security-policy allows Retrieve Embedded Sensitive Data.This issue affects Cookies and Content Security Policy: from n/a through <= 2.34.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-63019"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-22T17:15:59Z",
    "severity": "HIGH"
  },
  "details": "Insertion of Sensitive Information Into Sent Data vulnerability in Johan Jonk Stenstr\u00f6m Cookies and Content Security Policy cookies-and-content-security-policy allows Retrieve Embedded Sensitive Data.This issue affects Cookies and Content Security Policy: from n/a through \u003c= 2.34.",
  "id": "GHSA-wq23-6p2q-rgc7",
  "modified": "2026-04-23T18:32:23Z",
  "published": "2026-01-22T18:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-63019"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Plugin/cookies-and-content-security-policy/vulnerability/wordpress-cookies-and-content-security-policy-plugin-2-34-sensitive-data-exposure-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WRM3-H327-J8WH

Vulnerability from github – Published: 2023-11-06 15:30 – Updated: 2023-11-06 15:30
VLAI
Details

An issue has been discovered in GitLab EE affecting all versions starting from 11.6 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. It was possible for an unauthorised project or group member to read the CI/CD variables using the custom project templates.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-3399"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201",
      "CWE-284"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-06T13:15:09Z",
    "severity": "MODERATE"
  },
  "details": "An issue has been discovered in GitLab EE affecting all versions starting from 11.6 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. It was possible for an unauthorised project or group member to read the CI/CD variables using the custom project templates.",
  "id": "GHSA-wrm3-h327-j8wh",
  "modified": "2023-11-06T15:30:31Z",
  "published": "2023-11-06T15:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3399"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/2021616"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/416244"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WRR4-782V-JHWH

Vulnerability from github – Published: 2026-06-25 17:46 – Updated: 2026-06-25 17:46
VLAI
Summary
neotoma has tenant isolation gap in relationship query endpoints
Details

Summary

The /list_relationships and /retrieve_graph_neighborhood endpoints call getAuthenticatedUserId (confirming a valid session exists) but do not pass the resolved user ID into the Supabase query as an .eq("user_id", userId) filter. As a result, queries return rows from all users rather than scoping to the authenticated caller's data.

Affected code

/list_relationships (src/actions.ts): - Calls getAuthenticatedUserId but does not apply .eq("user_id", userId) to the relationships query - Uses .or() string interpolation for entity ID matching without input validation

/retrieve_graph_neighborhood (src/actions.ts): - Same pattern: auth resolved, user ID not applied to query filter

Affected versions

v0.13.0

Prerequisites

  1. A valid authentication token for the Neotoma instance (attacker must have a legitimate account on the same instance)
  2. A known entity ID belonging to another user (~96 bits of entropy — brute-force not practical)

An unauthenticated caller is rejected at the auth middleware layer. The gap requires a second user account on the instance.

Impact

An authenticated user with a known cross-user entity ID can retrieve relationship edges and graph neighborhood data belonging to another user. No write capability is exposed.

Severity

Low under current conditions — no multi-tenant deployments exist. Escalates to Medium the moment two or more user accounts share an instance.

Remediation

  1. Add .eq("user_id", userId) to all Supabase queries in both handlers
  2. Validate entity ID inputs with isNeotomaEntityId before query construction
  3. Replace .or() string interpolation with separate scoped .eq() calls

Fix tracked in #365 (list_relationships) and #366 (retrieve_graph_neighborhood). Gate gap tracked in #372.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "neotoma"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.13.0"
            },
            {
              "fixed": "0.14.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-25T17:46:49Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n\nThe `/list_relationships` and `/retrieve_graph_neighborhood` endpoints call `getAuthenticatedUserId` (confirming a valid session exists) but do not pass the resolved user ID into the Supabase query as an `.eq(\"user_id\", userId)` filter. As a result, queries return rows from all users rather than scoping to the authenticated caller\u0027s data.\n\n## Affected code\n\n**`/list_relationships`** (`src/actions.ts`):\n- Calls `getAuthenticatedUserId` but does not apply `.eq(\"user_id\", userId)` to the relationships query\n- Uses `.or()` string interpolation for entity ID matching without input validation\n\n**`/retrieve_graph_neighborhood`** (`src/actions.ts`):\n- Same pattern: auth resolved, user ID not applied to query filter\n\n## Affected versions\n\nv0.13.0\n\n## Prerequisites\n\n1. A valid authentication token for the Neotoma instance (attacker must have a legitimate account on the same instance)\n2. A known entity ID belonging to another user (~96 bits of entropy \u2014 brute-force not practical)\n\nAn unauthenticated caller is rejected at the auth middleware layer. The gap requires a second user account on the instance.\n\n## Impact\n\nAn authenticated user with a known cross-user entity ID can retrieve relationship edges and graph neighborhood data belonging to another user. No write capability is exposed.\n\n## Severity\n\nLow under current conditions \u2014 no multi-tenant deployments exist. Escalates to Medium the moment two or more user accounts share an instance.\n\n## Remediation\n\n1. Add `.eq(\"user_id\", userId)` to all Supabase queries in both handlers\n2. Validate entity ID inputs with `isNeotomaEntityId` before query construction\n3. Replace `.or()` string interpolation with separate scoped `.eq()` calls\n\nFix tracked in #365 (list_relationships) and #366 (retrieve_graph_neighborhood). Gate gap tracked in #372.",
  "id": "GHSA-wrr4-782v-jhwh",
  "modified": "2026-06-25T17:46:49Z",
  "published": "2026-06-25T17:46:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/security/advisories/GHSA-wrr4-782v-jhwh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/365"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/366"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/372"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/markmhendrickson/neotoma"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "neotoma has tenant isolation gap in relationship query endpoints"
}

GHSA-WV7V-X5C8-PRV7

Vulnerability from github – Published: 2026-06-25 15:32 – Updated: 2026-06-25 15:32
VLAI
Details

Unauthenticated Sensitive Data Exposure in Vitepos <= 3.4.2 versions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-54841"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T14:16:48Z",
    "severity": "HIGH"
  },
  "details": "Unauthenticated Sensitive Data Exposure in Vitepos \u003c= 3.4.2 versions.",
  "id": "GHSA-wv7v-x5c8-prv7",
  "modified": "2026-06-25T15:32:01Z",
  "published": "2026-06-25T15:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54841"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/vitepos-lite/vulnerability/wordpress-vitepos-plugin-3-4-2-sensitive-data-exposure-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WWCC-9GFR-HGP3

Vulnerability from github – Published: 2026-10-10 15:30 – Updated: 2026-10-10 15:30
VLAI
Details

Insertion of Sensitive Information Into Sent Data vulnerability in Devin Walker WP Rollback wp-rollback allows Retrieve Embedded Sensitive Data.This issue affects WP Rollback: from n/a through 3.1.2.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-66435"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-10T14:16:38Z",
    "severity": "MODERATE"
  },
  "details": "Insertion of Sensitive Information Into Sent Data vulnerability in Devin Walker WP Rollback wp-rollback allows Retrieve Embedded Sensitive Data.This issue affects WP Rollback: from n/a through 3.1.2.",
  "id": "GHSA-wwcc-9gfr-hgp3",
  "modified": "2026-10-10T15:30:22Z",
  "published": "2026-10-10T15:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66435"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/wp-rollback/vulnerability/wordpress-wp-rollback-plugin-3-1-2-sensitive-data-exposure-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WXM7-6PXH-23QX

Vulnerability from github – Published: 2026-05-27 09:31 – Updated: 2026-05-27 09:31
VLAI
Details

Insertion of Sensitive Information Into Sent Data vulnerability in Tom GenerateBlocks allows Retrieve Embedded Sensitive Data.

This issue affects GenerateBlocks: from n/a through 2.1.0.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-48877"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T09:16:31Z",
    "severity": "MODERATE"
  },
  "details": "Insertion of Sensitive Information Into Sent Data vulnerability in Tom GenerateBlocks allows Retrieve Embedded Sensitive Data.\n\nThis issue affects GenerateBlocks: from n/a through 2.1.0.",
  "id": "GHSA-wxm7-6pxh-23qx",
  "modified": "2026-05-27T09:31:17Z",
  "published": "2026-05-27T09:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48877"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/generateblocks/vulnerability/wordpress-generateblocks-plugin-2-1-0-sensitive-data-exposure-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WXR4-47M6-332V

Vulnerability from github – Published: 2026-07-31 15:32 – Updated: 2026-07-31 15:32
VLAI
Details

Insertion of Sensitive Information Into Sent Data vulnerability in Flipper Code WP Maps allows Retrieve Embedded Sensitive Data.

This issue affects WP Maps: from n/a through 4.9.6.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-28144"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-31T14:16:49Z",
    "severity": "MODERATE"
  },
  "details": "Insertion of Sensitive Information Into Sent Data vulnerability in Flipper Code WP Maps allows Retrieve Embedded Sensitive Data.\n\nThis issue affects WP Maps: from n/a through 4.9.6.",
  "id": "GHSA-wxr4-47m6-332v",
  "modified": "2026-07-31T15:32:49Z",
  "published": "2026-07-31T15:32:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28144"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/wp-google-map-plugin/vulnerability/wordpress-wp-maps-plugin-4-9-6-sensitive-data-exposure-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WXXW-5CVC-53J7

Vulnerability from github – Published: 2026-10-13 20:41 – Updated: 2026-10-13 20:41
VLAI
Summary
Microsoft Security Advisory CVE-2026-66822 - .NET and Visual Studio Information Disclosure Vulnerability
Details

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in System.Net.Http. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

SocketsHttpHandler can retain a Proxy-Authorization header across an HTTP redirect and leak basic proxy credentials to the destination server.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/448

CVSS Details

  • Version: 3.1
  • Severity: Moderate
  • Score: 5.9
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Weakness: CWE-201 (Insertion of Sensitive Information Into Sent Data)

Affected Platforms

  • Platforms: Windows, Linux, macOS
  • Architectures: All

Affected Packages

The vulnerability affects Microsoft .NET projects that use an affected package version listed below.

Package name Affected version Patched version
Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.win-arm >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.win-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.win-arm >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.win-arm >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31 8.0.32

Advisory FAQ

How do I know if I am affected?

If using a package listed in affected packages, you're exposed to the vulnerability.

How do I fix the issue?

  1. To fix the issue please install the latest version of .NET. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.
  2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the dotnet --info command.

Once you have installed the updated runtime or SDK, restart your apps for the update to take effect.

Additionally, if you've deployed self-contained applications targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.

Other Information

Reporting Security Issues

If you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the MSRC Researcher Portal. Further information can be found in the MSRC Report an Issue FAQ.

Security reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.

Support

You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.

Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

External Links

CVE-2026-66822

Acknowledgements

  • Ky0toFu (@ky0tofu)
  • jhanks
  • Lucas Futures
  • Wenhan Zhou
  • Weeraphat Srisutham
  • Brent Woodard (@crusader_sec) with Crusader Security, LLC (https://crusaderproxy.com/)
  • Kevin Schmidt
  • Piotr Pietruszewski
  • Leandro Batista
  • Raffaello Tamagnini
  • Harkenzo
  • Anonymous
  • Attila.Cs (zerodaybugs.com) with https://zerodaybugs.com/
  • l8BL with ENKI WhiteHat (https://www.enki.co.kr/)
  • caveeroo (https://caveeroo.dev/) with Tarlogic (https://www.tarlogic.com/)

Revisions

V1.0 (10/13/2026): Advisory published.

Show details on source website

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      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NETCore.App.Runtime.win-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.0.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.31"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NETCore.App.Runtime.win-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.0.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.31"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NETCore.App.Runtime.win-x86"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.0.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-66822"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-13T20:41:40Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in System.Net.Http. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nSocketsHttpHandler can retain a `Proxy-Authorization` header across an HTTP redirect and leak basic proxy credentials to the destination server.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/448\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** Moderate\n- **Score:** 5.9\n- **Vector:** `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`\n- **Weakness:** CWE-201 (Insertion of Sensitive Information Into Sent Data)\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## \u003ca name=\"affected-packages\"\u003e\u003c/a\u003eAffected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ---------------\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x86) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x86) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x86) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.win-x86) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n\n## Advisory FAQ\n\n### \u003ca name=\"how-affected\"\u003e\u003c/a\u003eHow do I know if I am affected?\n\nIf using a package listed in [affected packages](#affected-packages), you\u0027re exposed to the vulnerability.\n\n### \u003ca name=\"how-fix\"\u003e\u003c/a\u003eHow do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the `dotnet --info` command.\n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you\u0027ve deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-66822](https://www.cve.org/CVERecord?id=CVE-2026-66822)\n\n### Acknowledgements\n\n- Ky0toFu (@ky0tofu)\n- jhanks\n- Lucas Futures\n- Wenhan Zhou\n- Weeraphat Srisutham\n- Brent Woodard (@crusader_sec) with Crusader Security, LLC (https://crusaderproxy.com/)\n- Kevin Schmidt\n- Piotr Pietruszewski\n- Leandro Batista\n- Raffaello Tamagnini\n- Harkenzo\n- Anonymous\n- Attila.Cs (zerodaybugs.com) with https://zerodaybugs.com/\n- l8BL with ENKI WhiteHat (https://www.enki.co.kr/)\n- caveeroo (https://caveeroo.dev/) with Tarlogic (https://www.tarlogic.com/)\n\n### Revisions\n\nV1.0 (10/13/2026): Advisory published.",
  "id": "GHSA-wxxw-5cvc-53j7",
  "modified": "2026-10-13T20:41:41Z",
  "published": "2026-10-13T20:41:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/security/advisories/GHSA-wxxw-5cvc-53j7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/announcements/issues/448"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/issues/135697"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/runtime"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Microsoft Security Advisory CVE-2026-66822 - .NET and Visual Studio Information Disclosure Vulnerability"
}

GHSA-X3CC-5QRM-92GC

Vulnerability from github – Published: 2025-12-02 03:31 – Updated: 2025-12-02 15:30
VLAI
Details

In GPU pdma, there is a possible information disclosure due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS10117741; Issue ID: MSV-4538.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-20789"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-02T03:16:19Z",
    "severity": "MODERATE"
  },
  "details": "In GPU pdma, there is a possible information disclosure due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS10117741; Issue ID: MSV-4538.",
  "id": "GHSA-x3cc-5qrm-92gc",
  "modified": "2025-12-02T15:30:31Z",
  "published": "2025-12-02T03:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20789"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/December-2025"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Requirements

Specify which data in the software should be regarded as sensitive. Consider which types of users should have access to which types of data.

Mitigation
Implementation

Ensure that any possibly sensitive data specified in the requirements is verified with designers to ensure that it is either a calculated risk or mitigated elsewhere. Any information that is not necessary to the functionality should be removed in order to lower both the overhead and the possibility of security sensitive data being sent.

Mitigation
System Configuration

Setup default error messages so that unexpected errors do not disclose sensitive information.

Mitigation MIT-46
Architecture and Design

Strategy: Separation of Privilege

  • Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
CAPEC-12: Choosing Message Identifier

This pattern of attack is defined by the selection of messages distributed via multicast or public information channels that are intended for another client by determining the parameter value assigned to that client. This attack allows the adversary to gain access to potentially privileged information, and to possibly perpetrate other attacks through the distribution means by impersonation. If the channel/message being manipulated is an input rather than output mechanism for the system, (such as a command bus), this style of attack could be used to change the adversary's identifier to more a privileged one.

CAPEC-217: Exploiting Incorrectly Configured SSL/TLS

An adversary takes advantage of incorrectly configured SSL/TLS communications that enables access to data intended to be encrypted. The adversary may also use this type of attack to inject commands or other traffic into the encrypted stream to cause compromise of either the client or server.

CAPEC-612: WiFi MAC Address Tracking

In this attack scenario, the attacker passively listens for WiFi messages and logs the associated Media Access Control (MAC) addresses. These addresses are intended to be unique to each wireless device (although they can be configured and changed by software). Once the attacker is able to associate a MAC address with a particular user or set of users (for example, when attending a public event), the attacker can then scan for that MAC address to track that user in the future.

CAPEC-613: WiFi SSID Tracking

In this attack scenario, the attacker passively listens for WiFi management frame messages containing the Service Set Identifier (SSID) for the WiFi network. These messages are frequently transmitted by WiFi access points (e.g., the retransmission device) as well as by clients that are accessing the network (e.g., the handset/mobile device). Once the attacker is able to associate an SSID with a particular user or set of users (for example, when attending a public event), the attacker can then scan for this SSID to track that user in the future.

CAPEC-618: Cellular Broadcast Message Request

In this attack scenario, the attacker uses knowledge of the target’s mobile phone number (i.e., the number associated with the SIM used in the retransmission device) to cause the cellular network to send broadcast messages to alert the mobile device. Since the network knows which cell tower the target’s mobile device is attached to, the broadcast messages are only sent in the Location Area Code (LAC) where the target is currently located. By triggering the cellular broadcast message and then listening for the presence or absence of that message, an attacker could verify that the target is in (or not in) a given location.

CAPEC-619: Signal Strength Tracking

In this attack scenario, the attacker passively monitors the signal strength of the target’s cellular RF signal or WiFi RF signal and uses the strength of the signal (with directional antennas and/or from multiple listening points at once) to identify the source location of the signal. Obtaining the signal of the target can be accomplished through multiple techniques such as through Cellular Broadcast Message Request or through the use of IMSI Tracking or WiFi MAC Address Tracking.

CAPEC-621: Analysis of Packet Timing and Sizes

An attacker may intercept and log encrypted transmissions for the purpose of analyzing metadata such as packet timing and sizes. Although the actual data may be encrypted, this metadata may reveal valuable information to an attacker. Note that this attack is applicable to VOIP data as well as application data, especially for interactive apps that require precise timing and low-latency (e.g. thin-clients).

CAPEC-622: Electromagnetic Side-Channel Attack

In this attack scenario, the attacker passively monitors electromagnetic emanations that are produced by the targeted electronic device as an unintentional side-effect of its processing. From these emanations, the attacker derives information about the data that is being processed (e.g. the attacker can recover cryptographic keys by monitoring emanations associated with cryptographic processing). This style of attack requires proximal access to the device, however attacks have been demonstrated at public conferences that work at distances of up to 10-15 feet. There have not been any significant studies to determine the maximum practical distance for such attacks. Since the attack is passive, it is nearly impossible to detect and the targeted device will continue to operate as normal after a successful attack.

CAPEC-623: Compromising Emanations Attack

Compromising Emanations (CE) are defined as unintentional signals which an attacker may intercept and analyze to disclose the information processed by the targeted equipment. Commercial mobile devices and retransmission devices have displays, buttons, microchips, and radios that emit mechanical emissions in the form of sound or vibrations. Capturing these emissions can help an adversary understand what the device is doing.