Common Weakness Enumeration

CWE-400

Discouraged

Uncontrolled Resource Consumption

Abstraction: Class · Status: Draft

The product does not properly control the allocation and maintenance of a limited resource.

5603 vulnerabilities reference this CWE, most recent first.

GHSA-FMG9-CQHF-254R

Vulnerability from github – Published: 2022-10-21 19:01 – Updated: 2022-10-22 12:00
VLAI
Details

A potential DOS vulnerability was discovered in GitLab CE/EE affecting all versions from 10.8 before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2. Improper data handling on branch creation could have been used to trigger high CPU usage.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-3639"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-21T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "A potential DOS vulnerability was discovered in GitLab CE/EE affecting all versions from 10.8 before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2. Improper data handling on branch creation could have been used to trigger high CPU usage.",
  "id": "GHSA-fmg9-cqhf-254r",
  "modified": "2022-10-22T12:00:25Z",
  "published": "2022-10-21T19:01:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3639"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-3639.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/366876"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FMGX-6M2H-QH4R

Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2022-05-24 17:18
VLAI
Details

In Wireshark 3.2.0 to 3.2.3, 3.0.0 to 3.0.10, and 2.6.0 to 2.6.16, the NFS dissector could crash. This was addressed in epan/dissectors/packet-nfs.c by preventing excessive recursion, such as for a cycle in the directory graph on a filesystem.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-13164"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-05-19T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Wireshark 3.2.0 to 3.2.3, 3.0.0 to 3.0.10, and 2.6.0 to 2.6.16, the NFS dissector could crash. This was addressed in epan/dissectors/packet-nfs.c by preventing excessive recursion, such as for a cycle in the directory graph on a filesystem.",
  "id": "GHSA-fmgx-6m2h-qh4r",
  "modified": "2022-05-24T17:18:11Z",
  "published": "2022-05-24T17:18:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13164"
    },
    {
      "type": "WEB",
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16476"
    },
    {
      "type": "WEB",
      "url": "https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=e6e98eab8e5e0bbc982cfdc808f2469d7cab6c5a"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5UOISPQTRCZGQLKBVXEDL72AEXEHS425"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DNV3EYL4JBWCR22TJO3PH7ADUVS5RWSU"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202007-13"
    },
    {
      "type": "WEB",
      "url": "https://www.wireshark.org/security/wnpa-sec-2020-08.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00038.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-FMMJ-449G-8XVH

Vulnerability from github – Published: 2026-05-12 21:31 – Updated: 2026-05-12 21:31
VLAI
Details

CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-34673"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T20:16:37Z",
    "severity": "MODERATE"
  },
  "details": "CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.",
  "id": "GHSA-fmmj-449g-8xvh",
  "modified": "2026-05-12T21:31:34Z",
  "published": "2026-05-12T21:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34673"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FMMQ-J7PQ-F85C

Vulnerability from github – Published: 2022-05-17 04:17 – Updated: 2023-08-29 20:33
VLAI
Summary
JRuby denial of service via Hash Collision
Details

JRuby computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack against the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4838.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jruby:jruby-parent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2012-5370"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-29T20:33:46Z",
    "nvd_published_at": "2012-11-28T13:03:00Z",
    "severity": "MODERATE"
  },
  "details": "JRuby computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack against the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4838.",
  "id": "GHSA-fmmq-j7pq-f85c",
  "modified": "2023-08-29T20:33:46Z",
  "published": "2022-05-17T04:17:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5370"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jruby/jruby/commit/5e4aab28b26fd127112b76fabfac9a33b64caf77"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=880671"
    },
    {
      "type": "WEB",
      "url": "http://jruby.org/2012/12/03/jruby-1-7-1"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2013-0533.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "JRuby denial of service via Hash Collision"
}

GHSA-FMQ6-4W57-2W3V

Vulnerability from github – Published: 2024-11-09 00:30 – Updated: 2026-06-08 19:09
VLAI
Summary
wasm3 uncontrolled memory allocation vulnerability
Details

wasm3 at commit 139076a contains a memory leak in the Read_utf8 function.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "SwiftURL",
        "name": "github.com/shareup/wasm-interpreter-apple"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pywasm3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "wasm3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-27529"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-12T20:46:54Z",
    "nvd_published_at": "2024-11-08T22:15:15Z",
    "severity": "MODERATE"
  },
  "details": "wasm3 at commit 139076a contains a memory leak in the Read_utf8 function.",
  "id": "GHSA-fmq6-4w57-2w3v",
  "modified": "2026-06-08T19:09:15Z",
  "published": "2024-11-09T00:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27529"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wasm3/wasm3/issues/462"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wasm3/wasm3/pull/490"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wasm3/wasm3/commit/526c1251b64e6e9fdc0d40c768ae46cd20338594"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/haruki3hhh/ac70bd83b9c0ed1de6289d818488da78"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2024-305.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "wasm3 uncontrolled memory allocation vulnerability"
}

GHSA-FMX2-4QMC-7H5P

Vulnerability from github – Published: 2022-05-13 01:17 – Updated: 2025-04-20 03:41
VLAI
Details

The ReadDCMImage function in coders\dcm.c in ImageMagick 7.0.6-1 has an integer signedness error leading to excessive memory consumption via a crafted DCM file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-12140"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-02T05:29:00Z",
    "severity": "HIGH"
  },
  "details": "The ReadDCMImage function in coders\\dcm.c in ImageMagick 7.0.6-1 has an integer signedness error leading to excessive memory consumption via a crafted DCM file.",
  "id": "GHSA-fmx2-4qmc-7h5p",
  "modified": "2025-04-20T03:41:57Z",
  "published": "2022-05-13T01:17:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12140"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/issues/533"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00015.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-07"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3681-1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100096"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FMXM-F4R3-PVGQ

Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33
VLAI
Details

Windows Hyper-V Denial of Service Vulnerability

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-43575"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-08T18:15:25Z",
    "severity": "HIGH"
  },
  "details": "Windows Hyper-V Denial of Service Vulnerability",
  "id": "GHSA-fmxm-f4r3-pvgq",
  "modified": "2024-10-08T18:33:17Z",
  "published": "2024-10-08T18:33:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43575"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43575"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FP3C-5CV2-3XV4

Vulnerability from github – Published: 2022-09-07 00:01 – Updated: 2022-09-13 00:00
VLAI
Details

Multiple vulnerabilities exist in the processing of packet data by the LLDP service of AOS-CX. Successful exploitation of these vulnerabilities may allow an attacker to impact the availability of the AOS-CX LLDP service and/or the management plane of the switch in ArubaOS-CX Switches version(s): AOS-CX 10.09.xxxx: 10.09.1010 and below, AOS-CX 10.08.xxxx: 10.08.1050 and below, AOS-CX 10.06.xxxx: 10.06.0190 and below. Aruba has released upgrades for ArubaOS-CX Switch Devices that address these security vulnerabilities.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-23689"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-06T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Multiple vulnerabilities exist in the processing of packet data by the LLDP service of AOS-CX. Successful exploitation of these vulnerabilities may allow an attacker to impact the availability of the AOS-CX LLDP service and/or the management plane of the switch in ArubaOS-CX Switches version(s): AOS-CX 10.09.xxxx: 10.09.1010 and below, AOS-CX 10.08.xxxx: 10.08.1050 and below, AOS-CX 10.06.xxxx: 10.06.0190 and below. Aruba has released upgrades for ArubaOS-CX Switch Devices that address these security vulnerabilities.",
  "id": "GHSA-fp3c-5cv2-3xv4",
  "modified": "2022-09-13T00:00:40Z",
  "published": "2022-09-07T00:01:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23689"
    },
    {
      "type": "WEB",
      "url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-012.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FP4H-PPQJ-PRV5

Vulnerability from github – Published: 2024-01-29 15:30 – Updated: 2026-07-20 15:31
VLAI
Details

Uncontrolled resource consumption vulnerability in SE-elektronic GmbH E-DDC3.3 affecting versions 03.07.03 and higher. An attacker could interrupt the availability of the administration panel by sending multiple ICMP packets.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-1014"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-29T14:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Uncontrolled resource consumption vulnerability in SE-elektronic GmbH E-DDC3.3 affecting versions 03.07.03 and higher. An attacker could interrupt the availability of the administration panel by sending multiple ICMP packets.",
  "id": "GHSA-fp4h-ppqj-prv5",
  "modified": "2026-07-20T15:31:33Z",
  "published": "2024-01-29T15:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1014"
    },
    {
      "type": "WEB",
      "url": "https://www.hackplayers.com/2024/01/cve-2024-1014-and-cve-2024-1015.html"
    },
    {
      "type": "WEB",
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-se-elektronic-gmbh-products"
    },
    {
      "type": "WEB",
      "url": "https://www.se-elektronic.com/.well-known/csaf/advisories/2026/se-sa-2026_001.json"
    },
    {
      "type": "WEB",
      "url": "https://www.se-elektronic.com/psirt-cybersecurity"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FP99-783G-3PG9

Vulnerability from github – Published: 2025-10-21 21:33 – Updated: 2025-10-21 21:33
VLAI
Details

Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Object Store). The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle ZFS Storage Appliance Kit. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-62478"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-21T20:20:54Z",
    "severity": "MODERATE"
  },
  "details": "Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Object Store).   The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle ZFS Storage Appliance Kit.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle ZFS Storage Appliance Kit. CVSS 3.1 Base Score 4.9 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).",
  "id": "GHSA-fp99-783g-3pg9",
  "modified": "2025-10-21T21:33:44Z",
  "published": "2025-10-21T21:33:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62478"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2025.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design

Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.

Mitigation
Architecture and Design
  • Mitigation of resource exhaustion attacks requires that the target system either:
  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
  • The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
  • recognizes the attack and denies that user further access for a given amount of time, or
  • uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
Mitigation
Architecture and Design

Ensure that protocols have specific limits of scale placed on them.

Mitigation
Implementation

Ensure that all failures in resource allocation place the system into a safe posture.

CAPEC-147: XML Ping of the Death

An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.

CAPEC-227: Sustained Client Engagement

An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.

CAPEC-492: Regular Expression Exponential Blowup

An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.