GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration
Common Weakness Enumeration

CWE-280

Allowed

Improper Handling of Insufficient Permissions or Privileges

Abstraction: Base · Status: Draft

The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state.

285 vulnerabilities reference this CWE, most recent first.

GHSA-HWPP-2M5Q-2CW8

Vulnerability from github – Published: 2026-06-26 18:33 – Updated: 2026-06-26 21:32
VLAI
Details

Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory read or write outside the permitted range of memory for the host kernel.

Addresses passed to the GPU Firmware can be used by the Firmware for more privileged memory accesses than are permitted by the system.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-45195"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T16:16:30Z",
    "severity": "HIGH"
  },
  "details": "Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory read or write outside the permitted range of memory for the host kernel.\n\n\n\nAddresses passed to the GPU Firmware can be used by the Firmware for more privileged memory accesses than are permitted by the system.",
  "id": "GHSA-hwpp-2m5q-2cw8",
  "modified": "2026-06-26T21:32:15Z",
  "published": "2026-06-26T18:33:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45195"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-J5JV-W5CW-J9FF

Vulnerability from github – Published: 2026-02-03 12:30 – Updated: 2026-02-03 19:16
VLAI
Summary
Moodle authentication bypass vulnerability
Details

A flaw was found in Moodle. This authentication bypass vulnerability allows suspended users to authenticate through the Learning Tools Interoperability (LTI) Provider. The issue arises from the LTI authentication handlers failing to enforce the user's suspension status, enabling unauthorized access to the system. This can lead to information disclosure or other unauthorized actions by users who should be restricted.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.4.0-beta"
            },
            {
              "fixed": "4.4.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.5.0-beta"
            },
            {
              "fixed": "4.5.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0-beta"
            },
            {
              "fixed": "5.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0-beta"
            },
            {
              "fixed": "5.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67848"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-03T19:16:25Z",
    "nvd_published_at": "2026-02-03T11:15:54Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in Moodle. This authentication bypass vulnerability allows suspended users to authenticate through the Learning Tools Interoperability (LTI) Provider. The issue arises from the LTI authentication handlers failing to enforce the user\u0027s suspension status, enabling unauthorized access to the system. This can lead to information disclosure or other unauthorized actions by users who should be restricted.",
  "id": "GHSA-j5jv-w5cw-j9ff",
  "modified": "2026-02-03T19:16:26Z",
  "published": "2026-02-03T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67848"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/62f372e9d861d16df702d3c7726905fa2730e3d8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/c2705e2c18962fec4f21b9c34ed386be2a379663"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-67848"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423831"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moodle/moodle"
    },
    {
      "type": "WEB",
      "url": "https://moodle.org/mod/forum/discuss.php?d=471298"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moodle authentication bypass vulnerability"
}

GHSA-JHJM-5XJG-MPQP

Vulnerability from github – Published: 2023-03-21 21:30 – Updated: 2025-02-26 22:17
VLAI
Summary
Xuxueli xxl-job allows attacker to obtain sensitive information via the pageList parameter
Details

Permissions vulnerabiltiy found in Xuxueli xxl-job v2.2.0, v 2.3.0 and v.2.3.1 allows attacker to obtain sensitive information via the pageList parameter.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.xuxueli:xxl-job"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "last_affected": "2.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27087"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-21T22:41:55Z",
    "nvd_published_at": "2023-03-21T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Permissions vulnerabiltiy found in Xuxueli xxl-job v2.2.0, v 2.3.0 and v.2.3.1 allows attacker to obtain sensitive information via the pageList parameter.",
  "id": "GHSA-jhjm-5xjg-mpqp",
  "modified": "2025-02-26T22:17:31Z",
  "published": "2023-03-21T21:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27087"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xuxueli/xxl-job/issues/3096"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xuxueli/xxl-job"
    }
  ],
  "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"
    }
  ],
  "summary": "Xuxueli xxl-job allows attacker to obtain sensitive information via the pageList parameter"
}

GHSA-JM4C-88WP-RFJQ

Vulnerability from github – Published: 2026-08-11 15:32 – Updated: 2026-08-11 15:32
VLAI
Details

Velociraptor allows multi-tenant deployments named "Orgs".

By default Velociraptor, uses the ROOT org, but users can create child orgs for other tenants within the same deployment.

Users can have different permissions in each org. To manage Orgs, Velociraptor usually examines the ORG_ADMIN permission on the ROOT org.

This issue results from the Velociraptor server allowing for the deletion of Orgs by incorrectly checking the ORG_ADMIN permission of callers within the calling ORG instead of the ROOT org. However, Org admins of child orgs were able to add this permission to their ACL token within their own org. This allows an administrator in a child org, which is not also an administrator in the ROOT org, to delete other orgs.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-18860"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T15:17:28Z",
    "severity": "HIGH"
  },
  "details": "Velociraptor allows multi-tenant deployments named \"Orgs\".\n\nBy default Velociraptor, uses the ROOT org, but users can create child orgs for other tenants within the same deployment.\n\nUsers can have different permissions in each org. To manage Orgs, Velociraptor usually examines the ORG_ADMIN permission on the ROOT org.\n\nThis issue results from the Velociraptor server allowing for the deletion of Orgs by incorrectly checking the ORG_ADMIN permission of callers within the calling ORG instead of the ROOT org. However, Org admins of child orgs were able to add this permission to their ACL token within their own org.\u00a0This allows an administrator in a child org, which is not also an administrator in the ROOT org, to delete other orgs.",
  "id": "GHSA-jm4c-88wp-rfjq",
  "modified": "2026-08-11T15:32:45Z",
  "published": "2026-08-11T15:32:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18860"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Velocidex/velociraptor/commit/dc38bd6a7e12a678cd79e726bdd1ded4eed75967"
    },
    {
      "type": "WEB",
      "url": "https://docs.velociraptor.app/announcements/advisories/cve-2026-18860"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-JM5P-837G-RV8G

Vulnerability from github – Published: 2026-08-20 18:45 – Updated: 2026-08-20 18:45
VLAI
Summary
Wagtail: Improper restriction handling on Page translation API endpoint
Details

Impact

A CMS user with the "submit translations" permission, could use the Admin API's "copy for translation" endpoint to copy an existing page that they do not have edit access to, allowing them to view its contents.

Patches

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

Workarounds

N/A

Acknowledgements

Many thanks to tinyb0y for reporting this issue.

For more information

If you have any questions or comments about this advisory:

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "wagtail"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "wagtail"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1"
            },
            {
              "fixed": "7.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "wagtail"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.4"
            },
            {
              "fixed": "7.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "wagtail"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0rc1"
            },
            {
              "fixed": "8.0rc2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0rc1"
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-20T18:45:27Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nA CMS user with the \"submit translations\" permission, could use the Admin API\u0027s \"copy for translation\" endpoint to copy an existing page that they do not have edit access to, allowing them to view its contents.\n\n### Patches\nPatched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.\n\n### Workarounds\nN/A\n\n### Acknowledgements\nMany thanks to tinyb0y for reporting this issue.\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Visit Wagtail\u0027s [support channels](https://docs.wagtail.org/en/stable/support.html)\n* Email us at [security@wagtail.org](mailto:security@wagtail.org) (view our [security policy](https://github.com/wagtail/wagtail/security/policy) for more information).",
  "id": "GHSA-jm5p-837g-rv8g",
  "modified": "2026-08-20T18:45:28Z",
  "published": "2026-08-20T18:45:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-jm5p-837g-rv8g"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wagtail/wagtail"
    }
  ],
  "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"
    }
  ],
  "summary": "Wagtail: Improper restriction handling on Page translation API endpoint"
}

GHSA-JPGH-F7HM-PWMF

Vulnerability from github – Published: 2024-03-26 15:30 – Updated: 2024-03-26 15:30
VLAI
Details

In some rare cases, there is a password type validation missing in Revert Password check and for some features it could be disabled. Fixed Version: Win ZApp 4.3.0.121 and later.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-41972"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-26T15:15:48Z",
    "severity": "HIGH"
  },
  "details": "In some rare cases, there is a password type validation missing in Revert Password check and for some features it could be disabled. Fixed Version: Win ZApp 4.3.0.121 and later.",
  "id": "GHSA-jpgh-f7hm-pwmf",
  "modified": "2024-03-26T15:30:50Z",
  "published": "2024-03-26T15:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41972"
    },
    {
      "type": "WEB",
      "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows\u0026applicable_version=4.3.0.121\u0026deployment_date=2023-09-01\u0026id=1463196"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-JVRP-C78H-QQVJ

Vulnerability from github – Published: 2025-06-27 18:30 – Updated: 2025-07-01 18:30
VLAI
Details

Software installed and running inside a Guest VM may conduct improper GPU system calls to prevent other Guests from running work on the GPU.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-46708"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-27T17:15:33Z",
    "severity": "MODERATE"
  },
  "details": "Software installed and running inside a Guest VM may conduct improper GPU system calls to prevent other Guests from running work on the GPU.",
  "id": "GHSA-jvrp-c78h-qqvj",
  "modified": "2025-07-01T18:30:35Z",
  "published": "2025-06-27T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46708"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M6F8-HJRV-MW5F

Vulnerability from github – Published: 2023-03-27 22:17 – Updated: 2023-03-27 22:17
VLAI
Summary
Apiman vulnerable to permissions bypass due to missing check on API key URL
Details

Impact

Due to a missing permissions check, an attacker with an authenticated Apiman Manager account may be able to gain access to API keys they do not have permission for if they correctly guess the URL. The URL includes Organisation ID, Client ID, and Client Version of the targeted non-permitted resource, and each of these can have arbitrary values.

While not trivial to exploit, it could be achieved by brute-forcing or guessing common names.

Access to the non-permitted API Keys could allow use of other users' resources without their permission (depending on the specifics of configuration, such as whether an API key is the only form of security).

Patches

Apiman 3.1.0.Final and later resolves this issue.

Workarounds

Only provide Apiman Manager accounts to known users, do not allow anonymous/unknown users to create an Apiman Manager account.

Note that this does not affect the Apiman Gateway.

References

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 3.0.0.Final"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.apiman:apiman-manager-api-rest-impl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.0.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-28640"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-280",
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-27T22:17:57Z",
    "nvd_published_at": "2023-03-27T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nDue to a missing permissions check, an attacker with an authenticated Apiman Manager account may be able to gain access to API keys they do not have permission for if they correctly guess the URL. The URL includes Organisation ID, Client ID, and Client Version of the targeted non-permitted resource, and each of these can have arbitrary values.\n\nWhile not trivial to exploit, it could be achieved by brute-forcing or guessing common names.\n\nAccess to the non-permitted API Keys could allow use of other users\u0027 resources without their permission (depending on the specifics of configuration, such as whether an API key is the only form of security).\n\n### Patches\n\nApiman 3.1.0.Final and later resolves this issue. \n\n### Workarounds\n\nOnly provide Apiman Manager accounts to known users, do not allow anonymous/unknown users to create an Apiman Manager account.\n\nNote that this does **not** affect the Apiman Gateway.\n\n### References\n\n* [Blog post disclosing issue](https://www.apiman.io/blog/potential-permissions-bypass-disclosure/)\n",
  "id": "GHSA-m6f8-hjrv-mw5f",
  "modified": "2023-03-27T22:17:57Z",
  "published": "2023-03-27T22:17:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/apiman/apiman/security/advisories/GHSA-m6f8-hjrv-mw5f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28640"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apiman/apiman"
    },
    {
      "type": "WEB",
      "url": "https://www.apiman.io/blog/potential-permissions-bypass-disclosure"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apiman vulnerable to permissions bypass due to missing check on API key URL"
}

GHSA-M6HC-99RM-C9WC

Vulnerability from github – Published: 2026-06-09 15:32 – Updated: 2026-06-09 15:32
VLAI
Details

When creating an export of all reusable media, the secrets of connected gift cards were included in the export even if the user creating the export does not have permission to view gift cards. This is inconsistent with the UI and API where only the first letters of the gift card secret are shown. Therefore, it allows circumventing a permission boundary.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-11764"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-09T13:16:35Z",
    "severity": "LOW"
  },
  "details": "When creating an export of all reusable media, the secrets of connected \ngift cards were included in the export even if the user creating the \nexport does not have permission to view gift cards. This is inconsistent\n with the UI and API where only the first letters of the gift card \nsecret are shown. Therefore, it allows circumventing a permission \nboundary.",
  "id": "GHSA-m6hc-99rm-c9wc",
  "modified": "2026-06-09T15:32:17Z",
  "published": "2026-06-09T15:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11764"
    },
    {
      "type": "WEB",
      "url": "https://pretix.eu/about/en/blog/20260609-release-2026-5-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-M6W2-P258-GXQP

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-09-14 15:32
VLAI
Details

A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-2340"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:44Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in Samba\u2019s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.",
  "id": "GHSA-m6w2-p258-gxqp",
  "modified": "2026-09-14T15:32:11Z",
  "published": "2026-05-27T15:33:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2340"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.samba.org/show_bug.cgi?id=15997"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447318"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-2340"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:62549"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:62409"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:60019"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59831"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:57483"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56911"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56853"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56786"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29863"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28057"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28056"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28055"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28054"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28053"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:25979"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:25049"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22963"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22644"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.
Mitigation
Implementation

Always check to see if you have successfully accessed a resource or system functionality, and use proper error handling if it is unsuccessful. Do this even when you are operating in a highly privileged mode, because errors or environmental conditions might still cause a failure. For example, environments with highly granular permissions/privilege models, such as Windows or Linux capabilities, can cause unexpected failures.

No CAPEC attack patterns related to this CWE.