CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5448 vulnerabilities reference this CWE, most recent first.
GHSA-382W-Q3V4-XC76
Vulnerability from github – Published: 2024-09-17 00:31 – Updated: 2025-11-04 18:31A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.7, macOS Sonoma 14.7, macOS Sequoia 15. Processing a maliciously crafted texture may lead to unexpected app termination.
{
"affected": [],
"aliases": [
"CVE-2024-44160"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-17T00:15:50Z",
"severity": "HIGH"
},
"details": "A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.7, macOS Sonoma 14.7, macOS Sequoia 15. Processing a maliciously crafted texture may lead to unexpected app termination.",
"id": "GHSA-382w-q3v4-xc76",
"modified": "2025-11-04T18:31:23Z",
"published": "2024-09-17T00:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44160"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121234"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121238"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121247"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Sep/33"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Sep/40"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Sep/41"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-383M-3RGC-734C
Vulnerability from github – Published: 2024-05-14 18:30 – Updated: 2024-08-19 18:32An issue was discovered on certain Nuki Home Solutions devices. It is possible to send multiple BLE malformed packets to block some of the functionality and reboot the device. This affects Nuki Smart Lock 3.0 before 3.3.5 and Nuki Smart Lock 2.0 before 2.12.4.
{
"affected": [],
"aliases": [
"CVE-2022-32505"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T10:43:41Z",
"severity": "HIGH"
},
"details": "An issue was discovered on certain Nuki Home Solutions devices. It is possible to send multiple BLE malformed packets to block some of the functionality and reboot the device. This affects Nuki Smart Lock 3.0 before 3.3.5 and Nuki Smart Lock 2.0 before 2.12.4.",
"id": "GHSA-383m-3rgc-734c",
"modified": "2024-08-19T18:32:02Z",
"published": "2024-05-14T18:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32505"
},
{
"type": "WEB",
"url": "https://latesthackingnews.com/2022/07/28/multiple-security-flaws-found-in-nuki-smart-locks"
},
{
"type": "WEB",
"url": "https://nuki.io/en/security-updates"
},
{
"type": "WEB",
"url": "https://research.nccgroup.com/2022/07/25/technical-advisory-multiple-vulnerabilities-in-nuki-smart-locks-cve-2022-32509-cve-2022-32504-cve-2022-32502-cve-2022-32507-cve-2022-32503-cve-2022-32510-cve-2022-32506-cve-2022-32508-cve-2"
},
{
"type": "WEB",
"url": "https://www.hackread.com/nuki-smart-locks-vulnerabilities-plethora-attack-options"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-384M-RPVV-4RW6
Vulnerability from github – Published: 2024-02-23 09:30 – Updated: 2026-02-23 12:31Denial of service condition in M-Files Server in versions before 24.2 (excluding 23.2 SR7 and 23.8 SR5) allows anonymous user to cause denial of service against other anonymous users.
{
"affected": [],
"aliases": [
"CVE-2024-0563"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-23T09:15:22Z",
"severity": "MODERATE"
},
"details": "Denial of service condition in M-Files Server in\u00a0versions before 24.2 (excluding 23.2 SR7 and 23.8 SR5) allows anonymous user to cause denial of service against other anonymous users.",
"id": "GHSA-384m-rpvv-4rw6",
"modified": "2026-02-23T12:31:28Z",
"published": "2024-02-23T09:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0563"
},
{
"type": "WEB",
"url": "https://empower.m-files.com/security-advisories/CVE-2024-0563"
},
{
"type": "WEB",
"url": "https://product.m-files.com/security-advisories/cve-2024-0563"
},
{
"type": "WEB",
"url": "https://www.m-files.com/about/trust-center/security-advisories/cve-2024-0563"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-387V-QW2X-RWG8
Vulnerability from github – Published: 2025-04-01 00:30 – Updated: 2025-11-04 00:32The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5. An attacker in a privileged position may be able to perform a denial-of-service.
{
"affected": [],
"aliases": [
"CVE-2025-24260"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-31T23:15:22Z",
"severity": "CRITICAL"
},
"details": "The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5. An attacker in a privileged position may be able to perform a denial-of-service.",
"id": "GHSA-387v-qw2x-rwg8",
"modified": "2025-11-04T00:32:23Z",
"published": "2025-04-01T00:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24260"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122373"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122374"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122375"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/Apr/10"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/Apr/8"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/Apr/9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3886-RC87-CCGX
Vulnerability from github – Published: 2023-01-17 18:30 – Updated: 2025-11-03 21:30A flaw was found in freeradius. A malicious RADIUS client or home server can send a malformed abinary attribute which can cause the server to crash.
{
"affected": [],
"aliases": [
"CVE-2022-41861"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-17T18:15:00Z",
"severity": "MODERATE"
},
"details": "A flaw was found in freeradius. A malicious RADIUS client or home server can send a malformed abinary attribute which can cause the server to crash.",
"id": "GHSA-3886-rc87-ccgx",
"modified": "2025-11-03T21:30:46Z",
"published": "2023-01-17T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41861"
},
{
"type": "WEB",
"url": "https://github.com/FreeRADIUS/freeradius-server/commit/0ec2b39d260e"
},
{
"type": "WEB",
"url": "https://freeradius.org/security"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00030.html"
}
],
"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-389X-839F-4RHX
Vulnerability from github – Published: 2025-02-10 18:14 – Updated: 2025-03-19 14:51Summary
An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attemps to load a file that does not exist. If an attacker creates such a large file, the Netty application crash.
Details
A similar issue was previously reported in https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv This issue was fixed, but the fix was incomplete in that null-bytes were not counted against the input limit.
PoC
The PoC is the same as for https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv with the detail that the file should only contain null-bytes; 0x00.
When the null-bytes are encountered by the InputStreamReader, it will issue replacement characters in its charset decoding, which will fill up the line-buffer in the BufferedReader.readLine(), because the replacement character is not a line-break character.
Impact
Impact is the same as https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "io.netty:netty-common"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.118.Final"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-25193"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2025-02-10T18:14:47Z",
"nvd_published_at": "2025-02-10T22:15:38Z",
"severity": "MODERATE"
},
"details": "### Summary\nAn unsafe reading of environment file could potentially cause a denial of service in Netty.\nWhen loaded on an Windows application, Netty attemps to load a file that does not exist. If an attacker creates such a large file, the Netty application crash.\n\n### Details\nA similar issue was previously reported in https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv\nThis issue was fixed, but the fix was incomplete in that null-bytes were not counted against the input limit.\n\n\n### PoC\nThe PoC is the same as for https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv with the detail that the file should only contain null-bytes; 0x00.\nWhen the null-bytes are encountered by the `InputStreamReader`, it will issue replacement characters in its charset decoding, which will fill up the line-buffer in the `BufferedReader.readLine()`, because the replacement character is not a line-break character.\n\n### Impact\nImpact is the same as https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv",
"id": "GHSA-389x-839f-4rhx",
"modified": "2025-03-19T14:51:27Z",
"published": "2025-02-10T18:14:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/netty/netty/security/advisories/GHSA-389x-839f-4rhx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-25193"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/commit/d1fbda62d3a47835d3fb35db8bd42ecc205a5386"
},
{
"type": "PACKAGE",
"url": "https://github.com/netty/netty"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20250221-0006"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Denial of Service attack on windows app using Netty"
}
GHSA-38F2-VCGR-HQXH
Vulnerability from github – Published: 2024-06-27 00:31 – Updated: 2024-06-27 00:31Multiple Denial of Service (DoS) conditions has been discovered in GitLab CE/EE affecting all versions starting from 1.0 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1 which allowed an attacker to cause resource exhaustion via banzai pipeline.
{
"affected": [],
"aliases": [
"CVE-2024-4557"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-27T00:15:11Z",
"severity": "MODERATE"
},
"details": "Multiple Denial of Service (DoS) conditions has been discovered in GitLab CE/EE affecting all versions starting from 1.0 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1 which allowed an attacker to cause resource exhaustion via banzai pipeline.",
"id": "GHSA-38f2-vcgr-hqxh",
"modified": "2024-06-27T00:31:04Z",
"published": "2024-06-27T00:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4557"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/2485172"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/460517"
}
],
"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-38FC-WPQX-33J7
Vulnerability from github – Published: 2021-09-02 17:15 – Updated: 2021-08-26 14:52All versions of package trim-off-newlines are vulnerable to Regular Expression Denial of Service (ReDoS) via string processing.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "trim-off-newlines"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-23425"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-26T14:52:19Z",
"nvd_published_at": "2021-08-18T17:15:00Z",
"severity": "MODERATE"
},
"details": "All versions of package trim-off-newlines are vulnerable to Regular Expression Denial of Service (ReDoS) via string processing.",
"id": "GHSA-38fc-wpqx-33j7",
"modified": "2021-08-26T14:52:19Z",
"published": "2021-09-02T17:15:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23425"
},
{
"type": "WEB",
"url": "https://github.com/stevemao/trim-off-newlines/pull/3"
},
{
"type": "PACKAGE",
"url": "https://github.com/stevemao/trim-off-newlines"
},
{
"type": "WEB",
"url": "https://github.com/stevemao/trim-off-newlines/blob/master/index.js%23L6"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1567197"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JS-TRIMOFFNEWLINES-1296850"
}
],
"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:L",
"type": "CVSS_V3"
}
],
"summary": "Uncontrolled Resource Consumption in trim-off-newlines"
}
GHSA-38H3-2333-QX47
Vulnerability from github – Published: 2026-04-18 01:05 – Updated: 2026-04-27 16:15Summary
[!IMPORTANT]
There is no plan to fix this issue asOpenTelemetry.Exporter.Jaegerwas deprecated in 2023. It is for informational purposes only.
OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service.
Details
The Jaeger exporter conversion path can append tag/event data into pooled list structures. In affected versions, pooled allocation sizing may be influenced by large observed payloads and reused globally across later allocations, resulting in persistent oversized rentals and elevated memory pressure. In environments where telemetry attributes/events can be influenced by untrusted input and limits are increased from defaults, this may lead to process instability or denial of service.
Impact
Availability impact only. Confidentiality and integrity impacts are not expected.
Workarounds / Mitigations
- Prefer maintained exporters (for example OpenTelemetry Protocol format (OTLP)) instead of the Jaeger exporter.
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "OpenTelemetry.Exporter.Jaeger"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.6.0-rc.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-41078"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-18T01:05:12Z",
"nvd_published_at": "2026-04-23T19:17:28Z",
"severity": "MODERATE"
},
"details": "### Summary\n\n\u003e [!IMPORTANT] \n\u003e There is no plan to fix this issue as `OpenTelemetry.Exporter.Jaeger` was deprecated in 2023. It is for informational purposes only.\n\n`OpenTelemetry.Exporter.Jaeger` may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service.\n\n### Details\n\nThe Jaeger exporter conversion path can append tag/event data into pooled list structures. In affected versions, pooled allocation sizing may be influenced by large observed payloads and reused globally across later allocations, resulting in persistent oversized rentals and elevated memory pressure. In environments where telemetry attributes/events can be influenced by untrusted input and limits are increased from defaults, this may lead to process instability or denial of service.\n\n### Impact\n\nAvailability impact only. Confidentiality and integrity impacts are not expected.\n\n### Workarounds / Mitigations\n\n* Prefer maintained exporters (for example OpenTelemetry Protocol format (OTLP)) instead of the Jaeger exporter.",
"id": "GHSA-38h3-2333-qx47",
"modified": "2026-04-27T16:15:48Z",
"published": "2026-04-18T01:05:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-38h3-2333-qx47"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41078"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-telemetry/opentelemetry-dotnet"
}
],
"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:H",
"type": "CVSS_V3"
}
],
"summary": "OpenTelemetry .NET has potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path"
}
GHSA-38H7-7925-FVWV
Vulnerability from github – Published: 2024-09-25 12:30 – Updated: 2026-01-05 21:30Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation.
Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. In the logic establishing these mappings, error handling was flawed, resulting in such mappings to potentially remain in place when they should have been removed again. Respective guests would then gain access to memory regions which they aren't supposed to have access to.
{
"affected": [],
"aliases": [
"CVE-2024-31145"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-25T11:15:12Z",
"severity": "HIGH"
},
"details": "Certain PCI devices in a system might be assigned Reserved Memory\nRegions (specified via Reserved Memory Region Reporting, \"RMRR\") for\nIntel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used\nfor platform tasks such as legacy USB emulation.\n\nSince the precise purpose of these regions is unknown, once a device\nassociated with such a region is active, the mappings of these regions\nneed to remain continuouly accessible by the device. In the logic\nestablishing these mappings, error handling was flawed, resulting in\nsuch mappings to potentially remain in place when they should have been\nremoved again. Respective guests would then gain access to memory\nregions which they aren\u0027t supposed to have access to.",
"id": "GHSA-38h7-7925-fvwv",
"modified": "2026-01-05T21:30:26Z",
"published": "2024-09-25T12:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31145"
},
{
"type": "WEB",
"url": "https://xenbits.xenproject.org/xsa/advisory-460.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/08/14/2"
},
{
"type": "WEB",
"url": "http://xenbits.xen.org/xsa/advisory-460.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/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.