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-FFX9-X7F3-XR9V

Vulnerability from github – Published: 2025-07-15 21:31 – Updated: 2025-07-15 21:31
VLAI
Details

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle Java SE: 24.0.1; Oracle GraalVM for JDK: 24.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-30752"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-15T20:15:29Z",
    "severity": "LOW"
  },
  "details": "Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK product of Oracle Java SE (component: Compiler).   The supported version that is affected is Oracle Java SE: 24.0.1; Oracle GraalVM for JDK: 24.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.7 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).",
  "id": "GHSA-ffx9-x7f3-xr9v",
  "modified": "2025-07-15T21:31:40Z",
  "published": "2025-07-15T21:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30752"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2025.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FG23-6J5X-J67J

Vulnerability from github – Published: 2024-06-19 06:30 – Updated: 2024-06-19 06:30
VLAI
Details

An uncontrolled resource consumption vulnerability exists in the upload-link endpoint of mintplex-labs/anything-llm. This vulnerability allows attackers to cause a denial of service (DOS) by shutting down the server through sending invalid upload requests. Specifically, the server can be made to shut down by sending an empty body with a 'Content-Length: 0' header or by sending a body with arbitrary content, such as 'asdasdasd', with a 'Content-Length: 9' header. The vulnerability is reproducible by users with at least a 'Manager' role, sending a crafted request to any workspace. This issue indicates that a previous fix was not effective in mitigating the vulnerability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-5208"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T06:15:11Z",
    "severity": "MODERATE"
  },
  "details": "An uncontrolled resource consumption vulnerability exists in the `upload-link` endpoint of mintplex-labs/anything-llm. This vulnerability allows attackers to cause a denial of service (DOS) by shutting down the server through sending invalid upload requests. Specifically, the server can be made to shut down by sending an empty body with a \u0027Content-Length: 0\u0027 header or by sending a body with arbitrary content, such as \u0027asdasdasd\u0027, with a \u0027Content-Length: 9\u0027 header. The vulnerability is reproducible by users with at least a \u0027Manager\u0027 role, sending a crafted request to any workspace. This issue indicates that a previous fix was not effective in mitigating the vulnerability.",
  "id": "GHSA-fg23-6j5x-j67j",
  "modified": "2024-06-19T06:30:35Z",
  "published": "2024-06-19T06:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5208"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mintplex-labs/anything-llm/commit/e2439c6d4c3cfdacd96cd1b7b92d1f89c3cc8459"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/6c8bdfa1-ec56-4b02-bde9-cfc27470e6ca"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FG32-7HW7-W82P

Vulnerability from github – Published: 2024-06-07 21:31 – Updated: 2024-07-03 18:44
VLAI
Details

Precor touchscreen console P62, P80, and P82 contains a default SSH public key in the authorized_keys file. A remote attacker could use this key to gain root privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-49224"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-07T20:15:10Z",
    "severity": "HIGH"
  },
  "details": "Precor touchscreen console P62, P80, and P82 contains a default SSH public key in the authorized_keys file. A remote attacker could use this key to gain root privileges.",
  "id": "GHSA-fg32-7hw7-w82p",
  "modified": "2024-07-03T18:44:18Z",
  "published": "2024-06-07T21:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49224"
    },
    {
      "type": "WEB",
      "url": "https://securityintelligence.com/x-force/internet-connected-treadmill-vulnerabilities-discovered"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FG42-RVMC-CCPV

Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-04-08 18:34
VLAI
Details

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-27485"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-08T18:15:59Z",
    "severity": "HIGH"
  },
  "details": "Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.",
  "id": "GHSA-fg42-rvmc-ccpv",
  "modified": "2025-04-08T18:34:51Z",
  "published": "2025-04-08T18:34:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27485"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27485"
    }
  ],
  "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-FG4M-W35Q-VFG2

Vulnerability from github – Published: 2025-02-06 06:31 – Updated: 2025-03-19 15:40
VLAI
Summary
@zag-js/core prototype pollution
Details

A prototype pollution in the lib.deepMerge function of @zag-js/core v0.50.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@zag-js/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.82.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-57079"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-06T23:32:24Z",
    "nvd_published_at": "2025-02-05T22:15:32Z",
    "severity": "HIGH"
  },
  "details": "A prototype pollution in the lib.deepMerge function of @zag-js/core v0.50.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.",
  "id": "GHSA-fg4m-w35q-vfg2",
  "modified": "2025-03-19T15:40:29Z",
  "published": "2025-02-06T06:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57079"
    },
    {
      "type": "WEB",
      "url": "https://github.com/chakra-ui/zag/pull/2255"
    },
    {
      "type": "WEB",
      "url": "https://github.com/chakra-ui/zag/commit/f53edc548f737aadfdd486a0043bdd5f5c068bbf"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/tariqhawis/4778fc57084766b7b7fb6d25d20b7b9b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/chakra-ui/zag"
    }
  ],
  "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"
    }
  ],
  "summary": "@zag-js/core prototype pollution"
}

GHSA-FGWF-CXWH-J7GG

Vulnerability from github – Published: 2023-04-19 21:30 – Updated: 2024-04-04 03:36
VLAI
Details

In parseUsesPermission of ParsingPackageUtils.java, there is a possible boot loop due to resource exhaustion. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-259942609

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-21090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-19T20:15:11Z",
    "severity": "MODERATE"
  },
  "details": "In parseUsesPermission of ParsingPackageUtils.java, there is a possible boot loop due to resource exhaustion. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-259942609",
  "id": "GHSA-fgwf-cxwh-j7gg",
  "modified": "2024-04-04T03:36:01Z",
  "published": "2023-04-19T21:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21090"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2023-04-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FGWH-FRH9-VM43

Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2023-01-20 21:30
VLAI
Details

In Pure-FTPd 1.0.49, a stack exhaustion issue was discovered in the listdir function in ls.c.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-20176"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-31T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Pure-FTPd 1.0.49, a stack exhaustion issue was discovered in the listdir function in ls.c.",
  "id": "GHSA-fgwh-frh9-vm43",
  "modified": "2023-01-20T21:30:27Z",
  "published": "2022-05-24T17:05:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20176"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jedisct1/pure-ftpd/commit/aea56f4bcb9948d456f3fae4d044fd3fa2e19706"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AHZG5FPCRMCB6Z3L7FPICC6BZ5ZATFTO"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PICL3U2J4EPGBLOE555Y5RAZTQL3WBBV"
    }
  ],
  "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-FH29-P7GC-QWHP

Vulnerability from github – Published: 2022-05-14 01:37 – Updated: 2022-05-14 01:37
VLAI
Details

Dell EMC RecoverPoint versions prior to 5.1.2.1 and RecoverPoint for VMs versions prior to 5.2.0.2 contain an uncontrolled resource consumption vulnerability. A malicious boxmgmt user may potentially be able to consume large amount of CPU bandwidth to make the system slow or to determine the existence of any system file via Boxmgmt CLI.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-15772"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-13T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "Dell EMC RecoverPoint versions prior to 5.1.2.1 and RecoverPoint for VMs versions prior to 5.2.0.2 contain an uncontrolled resource consumption vulnerability. A malicious boxmgmt user may potentially be able to consume large amount of CPU bandwidth to make the system slow or to determine the existence of any system file via Boxmgmt CLI.",
  "id": "GHSA-fh29-p7gc-qwhp",
  "modified": "2022-05-14T01:37:11Z",
  "published": "2022-05-14T01:37:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15772"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2018/Nov/34"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105916"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1042059"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FH2C-86XM-PM2X

Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-10-15 16:10
VLAI
Summary
LiteLLM Vulnerable to Denial of Service (DoS) via Crafted HTTP Request
Details

A Denial of Service (DoS) vulnerability exists in berriai/litellm version v1.44.5. This vulnerability can be exploited by appending characters, such as dashes (-), to the end of a multipart boundary in an HTTP request. The server continuously processes each character, leading to excessive resource consumption and rendering the service unavailable. The issue is unauthenticated and does not require any user interaction, impacting all users of the service.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "litellm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.56.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-8984"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-20T20:56:29Z",
    "nvd_published_at": "2025-03-20T10:15:45Z",
    "severity": "HIGH"
  },
  "details": "A Denial of Service (DoS) vulnerability exists in berriai/litellm version v1.44.5. This vulnerability can be exploited by appending characters, such as dashes (-), to the end of a multipart boundary in an HTTP request. The server continuously processes each character, leading to excessive resource consumption and rendering the service unavailable. The issue is unauthenticated and does not require any user interaction, impacting all users of the service.",
  "id": "GHSA-fh2c-86xm-pm2x",
  "modified": "2025-10-15T16:10:41Z",
  "published": "2025-03-20T12:32:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8984"
    },
    {
      "type": "WEB",
      "url": "https://github.com/BerriAI/litellm/commit/4f49f836aa844ac9b6bfbeff27e6f6b2b9cf3f61"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/BerriAI/litellm"
    },
    {
      "type": "WEB",
      "url": "https://github.com/BerriAI/litellm/blob/8c5ff150f6142608ffe968e4e68429f978fda187/litellm/tests/test_spend_logs.py#L242"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/554fc76b-3097-4223-b4cf-110b853e9355"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LiteLLM Vulnerable to Denial of Service (DoS) via Crafted HTTP Request"
}

GHSA-FH2R-99Q2-6MMG

Vulnerability from github – Published: 2023-08-22 18:06 – Updated: 2023-09-19 22:28
VLAI
Summary
rustls-webpki: CPU denial of service in certificate path building
Details

When this crate is given a pathological certificate chain to validate, it will spend CPU time exponential with the number of candidate certificates at each step of path building.

Both TLS clients and TLS servers that accept client certificate are affected.

We now give each path building operation a budget of 100 signature verifications.

The original webpki crate is also affected, see GHSA-8qv2-5vq6-g2g7.

This was previously reported in the original crate https://github.com/briansmith/webpki/issues/69 and re-reported to us recently.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "rustls-webpki"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.100.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "rustls-webpki"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.101.0"
            },
            {
              "fixed": "0.101.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-22T18:06:15Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "When this crate is given a pathological certificate chain to validate, it will spend CPU time exponential with the number of candidate certificates at each step of path building.\n\nBoth TLS clients and TLS servers that accept client certificate are affected.\n\nWe now give each path building operation a budget of 100 signature verifications.\n\nThe original `webpki` crate is also affected, see [GHSA-8qv2-5vq6-g2g7](https://github.com/advisories/GHSA-8qv2-5vq6-g2g7).\n\nThis was previously reported in the original crate \u003chttps://github.com/briansmith/webpki/issues/69\u003e and re-reported to us recently.",
  "id": "GHSA-fh2r-99q2-6mmg",
  "modified": "2023-09-19T22:28:38Z",
  "published": "2023-08-22T18:06:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rustls/webpki/commit/4ea052366f342a06344aab589565179b59b342d3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rustls/webpki/commit/dcad2406c92169b72c110dd12183fcc74035b683"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8qv2-5vq6-g2g7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rustls/webpki"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0053.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "rustls-webpki: CPU denial of service in certificate path building"
}

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.