Common Weakness Enumeration
CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
2353 vulnerabilities reference this CWE, most recent first.
CVE-2026-82333 (GCVE-0-2026-82333)
Vulnerability from cvelistv5 – Published: 2026-08-28 20:12 – Updated: 2026-08-31 18:39
VLAI
EPSS
VEX
Title
multer vulnerable to Denial of Service via oversized array index in field names
Summary
multer is a middleware for handling multipart/form-data in Node.js. A small multipart request with two specially crafted text field names can make multer's field parser synchronously iterate a maximum-length sparse array, blocking the event loop so the process cannot handle other requests. A large numeric array index in the first field allocates a maximum-length sparse array, and a second field with a non-numeric key then triggers a full-length iteration inside the append-field dependency. All versions before 2.3.0 are affected, and this is a remotely triggerable denial of service. multer 2.3.0 adds an opt-in fieldArrayIndexLimit option that rejects oversized array indexes. Upgrade to multer 2.3.0 and set limits.fieldArrayIndexLimit to the largest array index your application needs to remediate.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:39 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
openjs
CNA
References
Impacted products
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CVE-2026-82300 (GCVE-0-2026-82300)
Vulnerability from cvelistv5 – Published: 2026-09-26 20:42 – Updated: 2026-10-01 12:54
VLAI
EPSS
VEX
Title
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
Summary
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:00 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
elastic
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Elastic | Elasticsearch |
Affected:
8.0.0 , ≤ 8.19.21
(semver)
Affected: 9.0.0 , ≤ 9.4.6 (semver) Affected: 9.5.0 , ≤ 9.5.3 (semver) |
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CVE-2026-82294 (GCVE-0-2026-82294)
Vulnerability from cvelistv5 – Published: 2026-09-26 20:42 – Updated: 2026-09-26 23:00
VLAI
EPSS
VEX
Title
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
Summary
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:00 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
elastic
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Elastic | Elasticsearch |
Affected:
8.0.0 , ≤ 8.19.20
(semver)
Affected: 9.0.0 , ≤ 9.4.5 (semver) Affected: 9.5.0 , ≤ 9.5.2 (semver) |
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CVE-2026-82261 (GCVE-0-2026-82261)
Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
SvelteKit before 2.52.2 CPU Exhaustion via Remote Form Deserialization
Summary
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:40 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/kit/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/sveltekit-be… | third-party-advisory |
Impacted products
Date Public
2026-02-18 00:00
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CVE-2026-82260 (GCVE-0-2026-82260)
Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization
Summary
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:42 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/kit/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/sveltekit-be… | third-party-advisory |
Impacted products
Date Public
2026-02-18 00:00
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CVE-2026-82256 (GCVE-0-2026-82256)
Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
SvelteKit before 2.69.1 Denial of Service via Remote Form
Summary
SvelteKit before 2.69.1 fails to properly validate remote form function payload sizes, allowing attackers to crash the Node process by sending large payloads. Repeated exploitation causes denial of service by repeatedly crashing the application process.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:41 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/kit/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/sveltekit-be… | third-party-advisory |
Impacted products
Date Public
2026-07-02 00:00
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CVE-2026-82235 (GCVE-0-2026-82235)
Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-08-28 15:53
VLAI
EPSS
VEX
Title
filebrowser through 2.63.23 Denial of Service via named pipes
Summary
filebrowser through 2.63.23 fails to validate named pipes in directory archive and public download handlers, allowing attackers to trigger blocking open syscalls. Authenticated users or anonymous visitors with public share links can repeatedly request archives containing named pipes to pin server goroutines and exhaust connection resources.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:32 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/filebrowser/filebrowser/securi… | vendor-advisory |
| https://github.com/filebrowser/filebrowser/commit… | patch |
| https://www.vulncheck.com/advisories/filebrowser-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| filebrowser | filebrowser |
Affected:
0 , ≤ 2.63.23
(semver)
cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:* |
Date Public
2026-08-14 00:00
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CVE-2026-82001 (GCVE-0-2026-82001)
Vulnerability from cvelistv5 – Published: 2026-09-08 20:30 – Updated: 2026-09-11 21:27
VLAI
EPSS
VEX
Title
Acrobat Reader | Uncontrolled Resource Consumption (CWE-400)
Summary
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Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 21:27 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption (CWE-400)
Assigner
adobe
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Acrobat |
Affected:
0 , ≤ 26.002.21900
(custom)
Unaffected: 26.002.21901 (custom) |
|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 26.002.21900
(custom)
Unaffected: 26.002.21901 (custom) |
|
| Adobe | Acrobat 2024 |
Affected:
0 , ≤ 24.001.30383
(custom)
Unaffected: 24.001.30429 (custom) |
Date Public
2026-09-08 17:00
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CVE-2026-81880 (GCVE-0-2026-81880)
Vulnerability from cvelistv5 – Published: 2026-09-22 15:09 – Updated: 2026-09-25 23:29
VLAI
EPSS
VEX
Title
radare2: Uncontrolled resource consumption in radare2 PEF loader
Summary
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Apple Preferred Executable Format loader was vulnerable because the PEF loader accepted relocSecCount values that were not bounded by the number of sections or complete relocation records in the input. The vulnerability is triggered by normal binary-format auto-detection of a small crafted Apple PEF file. The loader could perform up to 268,435,456 relocation-section iterations and repeated buffer operations after record offsets passed the end of the file. This can cause denial of service through excessive CPU consumption and prolonged processing. This issue is fixed in version 6.2.0.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 23:29 UTC
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/security/adv… | x_refsource_CONFIRM |
| https://github.com/radareorg/radare2/commit/87c78… | x_refsource_MISC |
| https://github.com/radareorg/radare2/releases/tag/6.2.0 | x_refsource_MISC |
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CVE-2026-81876 (GCVE-0-2026-81876)
Vulnerability from cvelistv5 – Published: 2026-09-16 18:48 – Updated: 2026-09-17 14:02
VLAI
EPSS
VEX
Title
HAPI FHIR: SHCParser DEFLATE infinite loop causes denial of service
Summary
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.12, SHCParser in org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/SHCParser.java can enter an infinite loop while processing attacker-controlled Smart Health Card JWT content whose header contains zip: "DEF" and whose raw-DEFLATE payload is empty or truncated. SHCParser.decodeJWT() reaches SHCParser.inflate(), where Inflater.inflate() can return zero while Inflater.finished() remains false and Inflater.needsInput() is true. The loop also lacks an Inflater.needsDictionary() termination check, SHCParser.decompress() contains the same zero-progress pattern, and ResourceChecker.java can reach SHC parsing during file-format detection. A malformed validation request can pin a JVM worker thread indefinitely, and concurrent requests can exhaust all validation workers. This issue is fixed in version 6.9.12.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 14:02 UTC
CWE
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/hapifhir/org.hl7.fhir.core/sec… | x_refsource_CONFIRM |
| https://github.com/hapifhir/org.hl7.fhir.core/pull/2493 | x_refsource_MISC |
| https://github.com/hapifhir/org.hl7.fhir.core/com… | x_refsource_MISC |
| https://github.com/hapifhir/org.hl7.fhir.core/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| hapifhir | org.hl7.fhir.core |
Affected:
< 6.9.12
|
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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.