Common Weakness Enumeration

CWE-400

Discouraged

Uncontrolled Resource Consumption

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product does not properly control the allocation and maintenance of a limited resource.

6189 vulnerabilities reference this CWE, most recent first.

CVE-2026-73561 (GCVE-0-2026-73561)

Vulnerability from cvelistv5 – Published: 2026-08-13 17:24 – Updated: 2026-08-18 01:27

Title

Hub: Unauthenticated WebSocket RPC Waiter Resource Exhaustion

Summary

Hub is a Node.js WebSocket server and client with added features. Prior to 0.2.16, every incoming unauthenticated WebSocket connection triggers loadDefaultConnectionEventListeners to call requestClientId, which calls rpc.send for the get-client-id action and pushes a request into RPC.requests. The RPC.waitForReply function starts a setInterval polling loop every 10 milliseconds that is cleared only after a matching reply; if the client remains silent and closes, the timer and pending request stay allocated because the socket close path does not cancel them. Repeated connections therefore cause unbounded timers and heap entries, exhausting CPU and memory and making the server unavailable. This issue is fixed in version 0.2.16.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 01:26 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/anephenix/hub/security/advisor…	x_refsource_CONFIRM
https://github.com/anephenix/hub/commit/931576db3…	x_refsource_MISC
https://github.com/anephenix/hub/tree/v0.2.16	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
anephenix	hub	Affected: < 0.2.16

Show details on NVD website

JSON

To clipboard

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CVE-2026-73559 (GCVE-0-2026-73559)

Vulnerability from cvelistv5 – Published: 2026-08-13 15:09 – Updated: 2026-08-14 16:51

Title

vLLM: Completion prompt lists fan out into unbounded engine requests

Summary

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.26.0, the /v1/completions CompletionRequest.prompt field in vllm/entrypoints/openai/completion/protocol.py accepts an unbounded list[str] or list[list[int]], prompt_to_seq() in vllm/renderers/inputs/preprocess.py and OnlineRenderer.preprocess_completion() in vllm/renderers/online_renderer.py expand every element, and vllm/entrypoints/openai/completion/serving.py creates one engine generator and response slot per prompt, allowing an authenticated API client to exhaust CPU, memory, async scheduling capacity, engine request slots, and response buffering with one request. This issue is fixed in version 0.26.0.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 16:51 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/vllm-project/vllm/security/adv…	x_refsource_CONFIRM
https://github.com/vllm-project/vllm/pull/47845	x_refsource_MISC
https://github.com/vllm-project/vllm/commit/675f4…	x_refsource_MISC
https://github.com/vllm-project/vllm/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vllm-project	vllm	Affected: >= 0.19.0, < 0.26.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-73556 (GCVE-0-2026-73556)

Vulnerability from cvelistv5 – Published: 2026-08-13 14:56 – Updated: 2026-08-14 16:52

Title

vLLM: ReDoS via structured_outputs.regex in the lm-format-enforcer backend (no compile timeout) — missed sibling of CVE-2026-55574

Summary

vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the structured_outputs.regex parameter in vllm/v1/structured_output/backend_lm_format_enforcer.py is passed to lmformatenforcer.RegexParser without compile_regex_with_timeout or validation in validate_structured_output_request_lm_format_enforcer, allowing an unauthenticated /v1/completions request against the lm-format-enforcer backend to consume a CPU core and stall the structured-output engine path with a catastrophic regular expression. This issue is fixed in version 0.26.0.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 16:52 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/vllm-project/vllm/security/adv…	x_refsource_CONFIRM
https://github.com/vllm-project/vllm/pull/47595	x_refsource_MISC
https://github.com/vllm-project/vllm/commit/c9a78…	x_refsource_MISC
https://github.com/vllm-project/vllm/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vllm-project	vllm	Affected: < 0.26.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-73507 (GCVE-0-2026-73507)

Vulnerability from cvelistv5 – Published: 2026-08-13 14:25 – Updated: 2026-08-15 03:16

Title

Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion

Summary

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.xml.XmlFrameDecoder.decode() failed to preserve closing-tag parser state across invocations, so an unauthenticated remote attacker could trickle-feed repeated </ sequences that repeatedly rescanned the accumulated buffer and exhausted an EventLoop thread's CPU, causing denial of service with a maxFrameLength of 1 MB. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-15 03:15 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/netty/netty/security/advisorie…	x_refsource_CONFIRM
https://github.com/netty/netty/commit/5b68c61f37a…	x_refsource_MISC
https://github.com/netty/netty/commit/bb2ff68a1fb…	x_refsource_MISC
https://github.com/netty/netty/releases/tag/netty…	x_refsource_MISC
https://github.com/netty/netty/releases/tag/netty…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
netty	netty	Affected: < 4.1.136.Final Affected: >= 4.2.0.Final, < 4.2.16.Final

Show details on NVD website

JSON

To clipboard

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CVE-2026-73413 (GCVE-0-2026-73413)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:40 – Updated: 2026-08-13 14:18

Title

Shescape: Quadratic-time denial of service in flag-protection

Summary

Shescape is a simple shell escape library for JavaScript. From 2.1.11 until 2.1.14 and 3.0.1, the flag-protection loop in compose in src/internal/compose.js repeatedly joins and slices flag fragments when flagProtection is enabled, which is the default, making processing quadratic in input size across the escape, escapeAll, quote, and quoteAll APIs. An attacker who can supply a large untrusted input containing many flag fragments can consume CPU and cause denial of service. This issue is fixed in versions 2.1.14 and 3.0.1.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 14:17 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-407 - Inefficient Algorithmic Complexity

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/ericcornelissen/shescape/secur…	x_refsource_CONFIRM
https://github.com/ericcornelissen/shescape/pull/2649	x_refsource_MISC
https://github.com/ericcornelissen/shescape/pull/2651	x_refsource_MISC
https://github.com/ericcornelissen/shescape/commi…	x_refsource_MISC
https://github.com/ericcornelissen/shescape/commi…	x_refsource_MISC
https://github.com/ericcornelissen/shescape/relea…	x_refsource_MISC
https://github.com/ericcornelissen/shescape/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ericcornelissen	shescape	Affected: >= 2.1.11, < 2.1.14 Affected: >= 3.0.0, < 3.0.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-73228 (GCVE-0-2026-73228)

Vulnerability from cvelistv5 – Published: 2026-08-11 18:54 – Updated: 2026-08-13 14:07

Title

Django REST framework: Potential bypass of Django `DATA_UPLOAD_MAX_MEMORY_SIZE` when parsing oversized JSON and urlencoded request bodies via DRF `request.data`

Summary

Django REST framework is a toolkit for building Web APIs. Prior to 3.17.2, Django REST Framework's request.data parsing in rest_framework/request.py Request._parse() passes the underlying HttpRequest stream to JSONParser and FormParser for application/json and application/x-www-form-urlencoded bodies, bypassing Django's DATA_UPLOAD_MAX_MEMORY_SIZE protection and allowing oversized request bodies to consume additional memory and CPU. This issue is fixed in version 3.17.2.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 13:17 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/encode/django-rest-framework/s…	x_refsource_CONFIRM
https://github.com/encode/django-rest-framework/p…	x_refsource_MISC
https://github.com/encode/django-rest-framework/c…	x_refsource_MISC
https://github.com/encode/django-rest-framework/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
encode	django-rest-framework	Affected: < 3.17.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-73216 (GCVE-0-2026-73216)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:39 – Updated: 2026-08-11 19:00

Title

coturn: mobility disconnects bypass allocation quotas and exhaust relay capacity

Summary

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, shutdown_client_connection() in src/server/ns_turn_server.c prematurely calls dec_quota() and releases bandwidth accounting during the first-stage close of a mobility-enabled allocation while preserving the allocation, relay socket, session, and mobility ticket, allowing an authenticated client to bypass --user-quota and --total-quota and exhaust relay ports. This issue is fixed in version 4.17.0.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-11 19:00 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/coturn/coturn/security/advisor…	x_refsource_CONFIRM
https://github.com/coturn/coturn/commit/3c5b2615f…	x_refsource_MISC
https://github.com/coturn/coturn/releases/tag/4.17.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
coturn	coturn	Affected: < 4.17.0

Show details on NVD website

JSON

To clipboard

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      "title": "coturn: mobility disconnects bypass allocation quotas and exhaust relay capacity"
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CVE-2026-73215 (GCVE-0-2026-73215)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:38 – Updated: 2026-08-13 14:14

Title

The coturn server can end in a state where it does not accept more requests with "even-port" enabled.

Summary

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, turnports_allocate_even() in src/apps/relay/turn_ports.c marks the unused odd sibling port as TPS_TAKEN_ODD for an EVEN-PORT Allocate request with reservation bit R=0 even though no RTCP socket will release it, allowing an authenticated client to permanently exhaust the relay port pool and cause subsequent allocations to fail with STUN error 508. This issue is fixed in version 4.17.0.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 14:14 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/coturn/coturn/security/advisor…	x_refsource_CONFIRM
https://github.com/coturn/coturn/commit/4adbd82e7…	x_refsource_MISC
https://github.com/coturn/coturn/releases/tag/4.17.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
coturn	coturn	Affected: < 4.17.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-73214 (GCVE-0-2026-73214)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:34 – Updated: 2026-08-12 22:13

Title

coturn allocates a full per-peer SSL/session before verifying the DTLS cookie, enabling source-spoofing/botnet state-exhaustion DoS

Summary

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, dtls_server_input_handler() and create_new_connected_udp_socket() in src/apps/relay/dtls_listener.c retain OpenSSL dtls1_reassemble_fragment() state for a 35-byte fragmented ClientHello declaring a 650,000-byte handshake before cookie validation, allowing an unauthenticated remote sender using fresh UDP tuples to exhaust memory without TURN credentials, a completed handshake, a valid cookie, or source spoofing. This issue is fixed in version 4.16.0.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 22:07 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/coturn/coturn/security/advisor…	x_refsource_CONFIRM
https://github.com/coturn/coturn/pull/2003	x_refsource_MISC
https://github.com/coturn/coturn/pull/2012	x_refsource_MISC
https://github.com/coturn/coturn/commit/37e13d1d6…	x_refsource_MISC
https://github.com/coturn/coturn/commit/beb4de9dc…	x_refsource_MISC
https://github.com/coturn/coturn/releases/tag/4.16.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
coturn	coturn	Affected: < 4.16.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-73175 (GCVE-0-2026-73175)

Vulnerability from cvelistv5 – Published: 2026-09-16 13:02 – Updated: 2026-09-17 18:57

Summary

Nozomi Networks Labs identified a CWE-400: Uncontrolled Resource Consumption vulnerability in the OPC UA gateway component of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows an adjacent unauthenticated attacker to exhaust the server session pool and cause a complete denial of service to all legitimate OPC UA clients by opening multiple anonymous sessions.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 18:57 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Nozomi mitre root

References

2 references

URL	Tags
https://www.nozominetworks.com/labs/vulnerability…	third-party-advisory
https://advcloudfiles.advantech.com/cms/5dafee28-…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Advantech	EKI-1242IEIMS	Affected: 0 , ≤ 1.06.01 (semver)
Advantech	EKI-1242EIMS	Affected: 0 , ≤ 1.06.01 (semver)

Credits

Simone Bossi at Nozomi Networks

Show details on NVD website

JSON

To clipboard

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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.

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