CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5568 vulnerabilities reference this CWE, most recent first.
GHSA-HQHP-5P83-HX96
Vulnerability from github – Published: 2021-09-20 20:44 – Updated: 2022-08-10 23:38Prism is a syntax highlighting library. The prismjs package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide a crafted HTML comment as input may cause an application to consume an excessive amount of CPU.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "prismjs"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.25.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-3801"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2021-09-16T18:29:46Z",
"nvd_published_at": "2021-09-15T13:15:00Z",
"severity": "MODERATE"
},
"details": "Prism is a syntax highlighting library. The prismjs package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide a crafted HTML comment as input may cause an application to consume an excessive amount of CPU.",
"id": "GHSA-hqhp-5p83-hx96",
"modified": "2022-08-10T23:38:25Z",
"published": "2021-09-20T20:44:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3801"
},
{
"type": "WEB",
"url": "https://github.com/prismjs/prism/commit/0ff371bb4775a131634f47d0fe85794c547232f9"
},
{
"type": "PACKAGE",
"url": "https://github.com/prismjs/prism"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/8c16ab31-6eb6-46d1-b9a4-387222fe1b8a"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "prismjs Regular Expression Denial of Service vulnerability"
}
GHSA-HQQ8-HR2R-232X
Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2022-05-13 01:31IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. IBM X-Force ID: 156242.
{
"affected": [],
"aliases": [
"CVE-2019-4046"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-25T19:29:00Z",
"severity": "HIGH"
},
"details": "IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. IBM X-Force ID: 156242.",
"id": "GHSA-hqq8-hr2r-232x",
"modified": "2022-05-13T01:31:13Z",
"published": "2022-05-13T01:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-4046"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/156242"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/docview.wss?uid=ibm10869570"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107623"
}
],
"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"
}
]
}
GHSA-HQQH-CQXQ-WQR6
Vulnerability from github – Published: 2022-05-24 19:07 – Updated: 2022-06-29 00:00Mikrotik RouterOs 6.44.5 (long-term tree) suffers from an stack exhaustion vulnerability in the /nova/bin/net process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.
{
"affected": [],
"aliases": [
"CVE-2020-20213"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-07T14:15:00Z",
"severity": "MODERATE"
},
"details": "Mikrotik RouterOs 6.44.5 (long-term tree) suffers from an stack exhaustion vulnerability in the /nova/bin/net process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.",
"id": "GHSA-hqqh-cqxq-wqr6",
"modified": "2022-06-29T00:00:30Z",
"published": "2022-05-24T19:07:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-20213"
},
{
"type": "WEB",
"url": "https://cwe.mitre.org/data/definitions/674.html"
},
{
"type": "WEB",
"url": "https://mikrotik.com"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2021/May/10"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HQXG-HW83-HJ3R
Vulnerability from github – Published: 2025-11-25 21:32 – Updated: 2025-11-26 00:30An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to cause the server to send email verification messages to arbitrary users via the /sendEmailCodeForResetPwd endpoint potentially causing a denial of service to the server or the downstream users.
{
"affected": [],
"aliases": [
"CVE-2025-51741"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-25T21:15:55Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to cause the server to send email verification messages to arbitrary users via the /sendEmailCodeForResetPwd endpoint potentially causing a denial of service to the server or the downstream users.",
"id": "GHSA-hqxg-hw83-hj3r",
"modified": "2025-11-26T00:30:26Z",
"published": "2025-11-25T21:32:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-51741"
},
{
"type": "WEB",
"url": "https://gist.github.com/Paxsizy/9d92e8746778cf0926705d89b4f3618c"
},
{
"type": "WEB",
"url": "https://github.com/Veal98/Echo"
},
{
"type": "WEB",
"url": "http://echo.com"
}
],
"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-HR4F-6JH8-F2VQ
Vulnerability from github – Published: 2023-10-18 18:25 – Updated: 2023-10-25 17:00Overview
OpenFGA is vulnerable to a DoS attack. When a number of ListObjects calls are executed, in some scenarios, those calls are not releasing resources even after a response has been sent, and the service as a whole becomes unresponsive.
Fix
Upgrade to v1.3.4. This upgrade is backwards compatible.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/openfga/openfga"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-45810"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-18T18:25:58Z",
"nvd_published_at": "2023-10-17T23:15:12Z",
"severity": "HIGH"
},
"details": "## Overview\nOpenFGA is vulnerable to a DoS attack. When a number of ListObjects calls are executed, in some scenarios, those calls are not releasing resources even after a response has been sent, and the service as a whole becomes unresponsive.\n\n## Fix\nUpgrade to v1.3.4. This upgrade is backwards compatible.",
"id": "GHSA-hr4f-6jh8-f2vq",
"modified": "2023-10-25T17:00:16Z",
"published": "2023-10-18T18:25:58Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openfga/openfga/security/advisories/GHSA-hr4f-6jh8-f2vq"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45810"
},
{
"type": "PACKAGE",
"url": "https://github.com/openfga/openfga"
},
{
"type": "WEB",
"url": "https://github.com/openfga/openfga/releases/tag/v1.3.4"
}
],
"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": "OpenFGA DoS vulnerability"
}
GHSA-HR7V-M862-8HH8
Vulnerability from github – Published: 2022-05-24 22:01 – Updated: 2025-11-04 00:30A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.
{
"affected": [],
"aliases": [
"CVE-2021-3737"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-835"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-04T19:15:00Z",
"severity": "LOW"
},
"details": "A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.",
"id": "GHSA-hr7v-m862-8hh8",
"modified": "2025-11-04T00:30:31Z",
"published": "2022-05-24T22:01:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3737"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/pull/25916"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/pull/26503"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/ea9327036680acc92d9f89eaf6f6a54d2f8d78d9"
},
{
"type": "WEB",
"url": "https://bugs.python.org/issue44022"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1995162"
},
{
"type": "PACKAGE",
"url": "https://github.com/python/cpython"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html"
},
{
"type": "WEB",
"url": "https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220407-0009"
},
{
"type": "WEB",
"url": "https://ubuntu.com/security/CVE-2021-3737"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
}
],
"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-HR85-6MV6-MCM7
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04An authenticated attacker with administrator rights Bosch IP cameras can call an URL with an invalid parameter that causes the camera to become unresponsive for a few seconds and cause a Denial of Service (DoS).
{
"affected": [],
"aliases": [
"CVE-2021-23852"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-09T15:15:00Z",
"severity": "MODERATE"
},
"details": "An authenticated attacker with administrator rights Bosch IP cameras can call an URL with an invalid parameter that causes the camera to become unresponsive for a few seconds and cause a Denial of Service (DoS).",
"id": "GHSA-hr85-6mv6-mcm7",
"modified": "2022-05-24T19:04:33Z",
"published": "2022-05-24T19:04:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23852"
},
{
"type": "WEB",
"url": "https://psirt.bosch.com/security-advisories/bosch-sa-478243-bt.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HRFH-7J5F-8CCR
Vulnerability from github – Published: 2022-05-24 17:01 – Updated: 2025-04-02 23:10Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack. The "X-Reason" HTTP Header can be leveraged to insert a malicious Erlang format string that will expand and consume the heap, resulting in the server crashing.
{
"affected": [
{
"package": {
"ecosystem": "Hex",
"name": "RabbitMQ"
},
"ranges": [
{
"events": [
{
"introduced": "3.7.0"
},
{
"fixed": "3.7.21"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Hex",
"name": "RabbitMQ"
},
"ranges": [
{
"events": [
{
"introduced": "3.8.0"
},
{
"fixed": "3.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Hex",
"name": "RabbitMQ"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.7"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Hex",
"name": "RabbitMQ"
},
"ranges": [
{
"events": [
{
"introduced": "1.17.0"
},
{
"fixed": "1.17.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-11287"
],
"database_specific": {
"cwe_ids": [
"CWE-134",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-01T11:48:49Z",
"nvd_published_at": "2019-11-23T00:15:00Z",
"severity": "HIGH"
},
"details": "Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack. The \"X-Reason\" HTTP Header can be leveraged to insert a malicious Erlang format string that will expand and consume the heap, resulting in the server crashing.",
"id": "GHSA-hrfh-7j5f-8ccr",
"modified": "2025-04-02T23:10:37Z",
"published": "2022-05-24T17:01:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11287"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0078"
},
{
"type": "WEB",
"url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-11287-DoS%20via%20Heap%20Overflow-RabbitMQ%20Web%20Management%20Plugin"
},
{
"type": "PACKAGE",
"url": "https://github.com/rabbitmq/rabbitmq-server"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00011.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EEQ6O7PMNJKYFMQYHAB55L423GYK63SO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYTGR3D5FW2O25RXZOTIZMOD2HAUVBE4"
},
{
"type": "WEB",
"url": "https://pivotal.io/security/cve-2019-11287"
}
],
"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": "Pivotal RabbitMQ is vulnerable to a denial of service attack"
}
GHSA-HRFV-MQP8-Q5RW
Vulnerability from github – Published: 2023-10-25 14:22 – Updated: 2026-05-20 22:21Werkzeug multipart data parser needs to find a boundary that may be between consecutive chunks. That's why parsing is based on looking for newline characters. Unfortunately, code looking for partial boundary in the buffer is written inefficiently, so if we upload a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer.
This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. If many concurrent requests are sent continuously, this can exhaust or kill all available workers.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Werkzeug"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Werkzeug"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0rc1"
},
{
"fixed": "2.3.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-46136"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-25T14:22:59Z",
"nvd_published_at": "2023-10-25T18:17:36Z",
"severity": "MODERATE"
},
"details": "Werkzeug multipart data parser needs to find a boundary that may be between consecutive chunks. That\u0027s why parsing is based on looking for newline characters. Unfortunately, code looking for partial boundary in the buffer is written inefficiently, so if we upload a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer.\n\nThis allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. If many concurrent requests are sent continuously, this can exhaust or kill all available workers.",
"id": "GHSA-hrfv-mqp8-q5rw",
"modified": "2026-05-20T22:21:18Z",
"published": "2023-10-25T14:22:59Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-hrfv-mqp8-q5rw"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46136"
},
{
"type": "WEB",
"url": "https://github.com/pallets/werkzeug/commit/b1916c0c083e0be1c9d887ee2f3d696922bfc5c1"
},
{
"type": "WEB",
"url": "https://github.com/pallets/werkzeug/commit/cbb446fdcada7685fce936ded01b76c08dbd6eb5"
},
{
"type": "WEB",
"url": "https://github.com/pallets/werkzeug/commit/f2300208d5e2a5076cbbb4c2aad71096fd040ef9"
},
{
"type": "WEB",
"url": "https://github.com/pallets/werkzeug/commit/f3c803b3ade485a45f12b6d6617595350c0f03e2"
},
{
"type": "PACKAGE",
"url": "https://github.com/pallets/werkzeug"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/werkzeug/PYSEC-2023-221.yaml"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231124-0008"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Werkzeug DoS: High resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning"
}
GHSA-HRJ2-4HPM-CJW9
Vulnerability from github – Published: 2022-05-24 17:24 – Updated: 2022-11-16 12:00Kibana versions before 6.8.11 and 7.8.1 contain a denial of service (DoS) flaw in Timelion. An attacker can construct a URL that when viewed by a Kibana user can lead to the Kibana process consuming large amounts of CPU and becoming unresponsive.
{
"affected": [],
"aliases": [
"CVE-2020-7016"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-27T18:15:00Z",
"severity": "MODERATE"
},
"details": "Kibana versions before 6.8.11 and 7.8.1 contain a denial of service (DoS) flaw in Timelion. An attacker can construct a URL that when viewed by a Kibana user can lead to the Kibana process consuming large amounts of CPU and becoming unresponsive.",
"id": "GHSA-hrj2-4hpm-cjw9",
"modified": "2022-11-16T12:00:19Z",
"published": "2022-05-24T17:24:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7016"
},
{
"type": "WEB",
"url": "https://discuss.elastic.co/t/elastic-stack-6-8-11-and-7-8-1-security-update/242786"
},
{
"type": "WEB",
"url": "https://www.elastic.co/community/security"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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
- 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
Ensure that protocols have specific limits of scale placed on them.
Mitigation
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.