CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5423 vulnerabilities reference this CWE, most recent first.
GHSA-WC8G-QPV4-8J46
Vulnerability from github – Published: 2024-09-17 00:31 – Updated: 2025-11-04 18:31An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.7, macOS Sequoia 15. Processing a maliciously crafted video file may lead to unexpected app termination.
{
"affected": [],
"aliases": [
"CVE-2024-40841"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-17T00:15:48Z",
"severity": "HIGH"
},
"details": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.7, macOS Sequoia 15. Processing a maliciously crafted video file may lead to unexpected app termination.",
"id": "GHSA-wc8g-qpv4-8j46",
"modified": "2025-11-04T18:31:19Z",
"published": "2024-09-17T00:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40841"
},
{
"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"
}
],
"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-WCC4-H459-J83C
Vulnerability from github – Published: 2022-05-17 02:24 – Updated: 2022-05-17 02:24The ReadEPTImage function in coders/ept.c in ImageMagick before 6.9.9-0 and 7.x before 7.0.6-1 allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2017-11530"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-23T03:29:00Z",
"severity": "HIGH"
},
"details": "The ReadEPTImage function in coders/ept.c in ImageMagick before 6.9.9-0 and 7.x before 7.0.6-1 allows remote attackers to cause a denial of service (memory consumption) via a crafted file.",
"id": "GHSA-wcc4-h459-j83c",
"modified": "2022-05-17T02:24:08Z",
"published": "2022-05-17T02:24:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11530"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/524"
},
{
"type": "WEB",
"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=867821"
}
],
"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-WCCQ-3Q4Q-X242
Vulnerability from github – Published: 2025-08-18 21:31 – Updated: 2025-08-18 21:31TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the fw_ip parameter at /boafrm/formPortFw. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
{
"affected": [],
"aliases": [
"CVE-2025-55588"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-18T20:15:31Z",
"severity": "HIGH"
},
"details": "TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the fw_ip parameter at /boafrm/formPortFw. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.",
"id": "GHSA-wccq-3q4q-x242",
"modified": "2025-08-18T21:31:21Z",
"published": "2025-08-18T21:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55588"
},
{
"type": "WEB",
"url": "https://github.com/goldenGlow21/softwares_PoC/blob/main/A3002R_V4/Boa%20-%20BOF/formPortFw%20PoC.md"
}
],
"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-WCG3-V8J6-C8GG
Vulnerability from github – Published: 2025-01-21 21:30 – Updated: 2025-01-21 21:30Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.19.20, 5.6.25.8, 5.6.26.6 and 5.6.27.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hospitality OPERA 5 accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hospitality OPERA 5. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).
{
"affected": [],
"aliases": [
"CVE-2025-21547"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-21T21:15:21Z",
"severity": "CRITICAL"
},
"details": "Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.19.20, 5.6.25.8, 5.6.26.6 and 5.6.27.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hospitality OPERA 5 accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hospitality OPERA 5. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).",
"id": "GHSA-wcg3-v8j6-c8gg",
"modified": "2025-01-21T21:30:56Z",
"published": "2025-01-21T21:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21547"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2025.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WCG9-65QX-C5VJ
Vulnerability from github – Published: 2022-05-17 00:31 – Updated: 2025-04-20 03:39The OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.
{
"affected": [],
"aliases": [
"CVE-2017-1000373"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-19T16:29:00Z",
"severity": "MODERATE"
},
"details": "The OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.",
"id": "GHSA-wcg9-65qx-c5vj",
"modified": "2025-04-20T03:39:20Z",
"published": "2022-05-17T00:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000373"
},
{
"type": "WEB",
"url": "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15\u0026content-type=text/x-cvsweb-markup"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208112"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208113"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208115"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208144"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/42271"
},
{
"type": "WEB",
"url": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99177"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039427"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-WCHF-39Q2-HFMR
Vulnerability from github – Published: 2022-05-13 01:35 – Updated: 2022-05-13 01:35A vulnerability in the Secure Sockets Layer (SSL) packet reassembly functionality of the detection engine in Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause the detection engine to consume excessive system memory on an affected device, which could cause a denial of service (DoS) condition. The vulnerability is due to the affected software improperly handling changes to SSL connection states. An attacker could exploit this vulnerability by sending crafted SSL connections through an affected device. A successful exploit could allow the attacker to cause the detection engine to consume excessive system memory on the affected device, which could cause a DoS condition. The device may need to be reloaded manually to recover from this condition. This vulnerability affects Cisco Firepower System Software Releases 6.0.0 and later, running on any of the following Cisco products: Adaptive Security Appliance (ASA) 5500-X Series Firewalls with FirePOWER Services, Adaptive Security Appliance (ASA) 5500-X Series Next-Generation Firewalls, Advanced Malware Protection (AMP) for Networks, 7000 Series Appliances, Advanced Malware Protection (AMP) for Networks, 8000 Series Appliances, Firepower 4100 Series Appliances, FirePOWER 7000 Series Appliances, FirePOWER 8000 Series Appliances, Firepower 9300 Series Security Appliances, Firepower Threat Defense for Integrated Services Routers (ISRs), Firepower Threat Defense Virtual for VMware, Industrial Security Appliance 3000, Sourcefire 3D System Appliances. Cisco Bug IDs: CSCve23031.
{
"affected": [],
"aliases": [
"CVE-2018-0233"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-19T20:29:00Z",
"severity": "HIGH"
},
"details": "A vulnerability in the Secure Sockets Layer (SSL) packet reassembly functionality of the detection engine in Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause the detection engine to consume excessive system memory on an affected device, which could cause a denial of service (DoS) condition. The vulnerability is due to the affected software improperly handling changes to SSL connection states. An attacker could exploit this vulnerability by sending crafted SSL connections through an affected device. A successful exploit could allow the attacker to cause the detection engine to consume excessive system memory on the affected device, which could cause a DoS condition. The device may need to be reloaded manually to recover from this condition. This vulnerability affects Cisco Firepower System Software Releases 6.0.0 and later, running on any of the following Cisco products: Adaptive Security Appliance (ASA) 5500-X Series Firewalls with FirePOWER Services, Adaptive Security Appliance (ASA) 5500-X Series Next-Generation Firewalls, Advanced Malware Protection (AMP) for Networks, 7000 Series Appliances, Advanced Malware Protection (AMP) for Networks, 8000 Series Appliances, Firepower 4100 Series Appliances, FirePOWER 7000 Series Appliances, FirePOWER 8000 Series Appliances, Firepower 9300 Series Security Appliances, Firepower Threat Defense for Integrated Services Routers (ISRs), Firepower Threat Defense Virtual for VMware, Industrial Security Appliance 3000, Sourcefire 3D System Appliances. Cisco Bug IDs: CSCve23031.",
"id": "GHSA-wchf-39q2-hfmr",
"modified": "2022-05-13T01:35:33Z",
"published": "2022-05-13T01:35:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0233"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fpsnort"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103930"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WCHP-7C65-4HQG
Vulnerability from github – Published: 2023-12-14 21:31 – Updated: 2023-12-19 21:32An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the server wants to send an error packet, while socket is blocked on writing.
{
"affected": [],
"aliases": [
"CVE-2023-41151"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-755"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-14T19:15:16Z",
"severity": "HIGH"
},
"details": "An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the server wants to send an error packet, while socket is blocked on writing.",
"id": "GHSA-wchp-7c65-4hqg",
"modified": "2023-12-19T21:32:19Z",
"published": "2023-12-14T21:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41151"
},
{
"type": "WEB",
"url": "https://industrial.softing.com/fileadmin/psirt/downloads/2023/syt-2023-3.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-WCPX-V8VR-H5CW
Vulnerability from github – Published: 2022-05-17 04:20 – Updated: 2022-05-17 04:20The SSL VPN implementation in Cisco Adaptive Security Appliance (ASA) Software 9.3(.2) and earlier does not properly allocate memory blocks during HTTP packet handling, which allows remote attackers to cause a denial of service (memory consumption) via crafted packets, aka Bug ID CSCuq68888.
{
"affected": [],
"aliases": [
"CVE-2014-3407"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-11-28T02:59:00Z",
"severity": "MODERATE"
},
"details": "The SSL VPN implementation in Cisco Adaptive Security Appliance (ASA) Software 9.3(.2) and earlier does not properly allocate memory blocks during HTTP packet handling, which allows remote attackers to cause a denial of service (memory consumption) via crafted packets, aka Bug ID CSCuq68888.",
"id": "GHSA-wcpx-v8vr-h5cw",
"modified": "2022-05-17T04:20:47Z",
"published": "2022-05-17T04:20:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3407"
},
{
"type": "WEB",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3407"
},
{
"type": "WEB",
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=36542"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WCWG-C5FC-9VRC
Vulnerability from github – Published: 2026-06-11 12:32 – Updated: 2026-07-01 15:34vLLM versions 0.8.0 and later are vulnerable to an Out-of-Memory (OOM) Denial of Service (DoS) attack due to unbounded frame count processing in the VideoMediaIO.load_base64() method. When processing video/jpeg data URLs, the method splits the base64 data string on commas to extract individual JPEG frames without enforcing a frame count limit. An attacker can exploit this by crafting a single API request containing thousands of comma-separated base64-encoded JPEG frames in a data URL, causing the server to decode all frames into memory and crash due to excessive memory consumption. This vulnerability is reachable via the OpenAI-compatible chat completions API and does not require authentication.
{
"affected": [],
"aliases": [
"CVE-2026-5497"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-11T10:16:21Z",
"severity": "HIGH"
},
"details": "vLLM versions 0.8.0 and later are vulnerable to an Out-of-Memory (OOM) Denial of Service (DoS) attack due to unbounded frame count processing in the `VideoMediaIO.load_base64()` method. When processing `video/jpeg` data URLs, the method splits the base64 data string on commas to extract individual JPEG frames without enforcing a frame count limit. An attacker can exploit this by crafting a single API request containing thousands of comma-separated base64-encoded JPEG frames in a data URL, causing the server to decode all frames into memory and crash due to excessive memory consumption. This vulnerability is reachable via the OpenAI-compatible chat completions API and does not require authentication.",
"id": "GHSA-wcwg-c5fc-9vrc",
"modified": "2026-07-01T15:34:53Z",
"published": "2026-06-11T12:32:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5497"
},
{
"type": "WEB",
"url": "https://github.com/vllm-project/vllm/commit/58ee61422169ce17e08248f8efa1e9df434fe395"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:33524"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:33531"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-5497"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487813"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/7bd92629-b396-4449-8f88-6c0092530eb4"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5497.json"
}
],
"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-WCWP-9RCP-JVFG
Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-07-21 19:08A vulnerability in open-webui/open-webui v0.3.8 allows an unauthenticated attacker to sign up with excessively large text in the 'name' field, causing the Admin panel to become unresponsive. This prevents administrators from performing essential user management actions such as deleting, editing, or adding users. The vulnerability can also be exploited by authenticated users with low privileges, leading to the same unresponsive state in the Admin panel.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "open-webui"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.3.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-7036"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2025-07-21T19:08:55Z",
"nvd_published_at": "2025-03-20T10:15:35Z",
"severity": "HIGH"
},
"details": "A vulnerability in open-webui/open-webui v0.3.8 allows an unauthenticated attacker to sign up with excessively large text in the \u0027name\u0027 field, causing the Admin panel to become unresponsive. This prevents administrators from performing essential user management actions such as deleting, editing, or adding users. The vulnerability can also be exploited by authenticated users with low privileges, leading to the same unresponsive state in the Admin panel.",
"id": "GHSA-wcwp-9rcp-jvfg",
"modified": "2025-07-21T19:08:55Z",
"published": "2025-03-20T12:32:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7036"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-webui/open-webui"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/ba62d093-ab27-48fa-9c53-0602c8cdc48a"
}
],
"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": "Open WebUI Uncontrolled Resource Consumption vulnerability"
}
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.