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.

6460 vulnerabilities reference this CWE, most recent first.

CVE-2026-66299 (GCVE-0-2026-66299)

Vulnerability from cvelistv5 – Published: 2026-07-28 14:29 – Updated: 2026-07-28 17:40

Title

Apache Tomcat: DoS via WebSocket chat example

Summary

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web application are not affected by this issue. Users are recommended to remove the examples web application or to upgrade to version 11.0.25, 10.1.58 or 9.0.121 (when released), which fix the issue.

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 2026-07-28 17:39 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

apache mitre root Scorecard

References

2 references

URL	Tags
https://lists.apache.org/thread/8owczcc1o8qw1rxmg…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M20 , ≤ 11.0.24 (semver) Affected: 10.1.24 , ≤ 10.1.57 (semver) Affected: 9.0.89 , ≤ 9.0.120 (semver) Unaffected: 0 , ≤ 8.5.100 (semver)

Credits

4ra1n, pyn3rd and unam4

Show details on NVD website

JSON

To clipboard

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CVE-2026-66144 (GCVE-0-2026-66144)

Vulnerability from cvelistv5 – Published: 2026-07-24 12:08 – Updated: 2026-07-24 18:42

Title

Apache Neethi: Remote PolicyReference fetch lacks resource bounds

Summary

Although remote policy references are not retrieved during policy normalization, if they are manually retrieved via the API it can cause a denial of service attack if a huge policy is retrieved. Users are recommended to upgrade to version 3.2.3, which fixes this issue by imposing a default maximum size on data read from remote policy references.

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 2026-07-24 18:42 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

apache mitre root Scorecard

References

2 references

URL	Tags
https://lists.apache.org/thread/80xwwbhkqvbwkkmco…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Neethi	Affected: 0 , < 3.2.3 (semver)

Credits

Reported by LTSHFWJT

Show details on NVD website

JSON

To clipboard

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CVE-2026-66143 (GCVE-0-2026-66143)

Vulnerability from cvelistv5 – Published: 2026-07-24 12:07 – Updated: 2026-07-24 18:40

Title

Apache Neethi: Missing global alternative-output budget across policy computation paths

Summary

It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi 3.2.2 via certain crafted policies, which may lead to a denial of service attack via resource consumption. Users are recommended to upgrade to version 3.2.3, which fixes this issue.

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 2026-07-24 18:39 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

apache mitre root Scorecard

References

2 references

URL	Tags
https://lists.apache.org/thread/s6o6p5pvcbcsk54dl…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/07/24/9

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Neethi	Affected: 0 , < 3.2.3 (semver)

Credits

Reported by LTSHFWJT

Show details on NVD website

JSON

To clipboard

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CVE-2026-66142 (GCVE-0-2026-66142)

Vulnerability from cvelistv5 – Published: 2026-07-24 12:07 – Updated: 2026-07-24 18:38

Title

Apache Neethi: Uncontrolled recursion in policy processing

Summary

Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deeply nested structures, which may lead to a denial of service attack when parsing policies due to runtime memory exhaustion. Users are recommended to upgrade to version 3.2.3, which fixes this issue.

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 2026-07-24 18:37 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

apache mitre root Scorecard

References

2 references

URL	Tags
https://lists.apache.org/thread/fomwtwt4pzzhxn4fy…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/07/24/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Neethi	Affected: 0 , < 3.2.3 (semver)

Credits

Reported by LTSHFWJT

Show details on NVD website

JSON

To clipboard

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CVE-2026-66073 (GCVE-0-2026-66073)

Vulnerability from cvelistv5 – Published: 2026-09-25 16:06 – Updated: 2026-09-25 16:43

Title

RabbitMQ: Atom table exhaustion via management API node field

Summary

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, Atom table exhaustion via management API node field. pUT /api/queues/:vhost/:name (and the exchanges and bindings endpoints) accepts a node JSON field. The value goes through rabbitnodes:make → listtoatom with no cluster membership check first. Each unique value permanently leaks one atom. A March 2026 refactoring (ea61ce2563) introduced safe helpers in rabbitmgmtnodes.erl (parsenodename, safeatom, and requirenodename, using binarytoexistingatom) and fixed several callers (QQ replica ops, wmauthattempts, wmnodememoryets, getsortreverse, and rabbitfederationmgmt), but getnode/1 in rabbitmgmtutil.erl:880-885, the primary vector used by directrequest/6, was not Roughly 900K requests crash the VM via systemlimit, and all tenants lose Any user with the management tag and one vhost, the lowest privilege This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/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 2026-09-25 16:43 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/rabbitmq/rabbitmq-server/secur…	x_refsource_CONFIRM
https://github.com/rabbitmq/rabbitmq-server/commi…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rabbitmq	rabbitmq-server	Affected: >= 3.13.0, < 3.13.15 Affected: >= 4.0.0, < 4.0.20 Affected: >= 4.1.0, < 4.1.11 Affected: >= 4.2.0, < 4.2.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-66072 (GCVE-0-2026-66072)

Vulnerability from cvelistv5 – Published: 2026-09-23 20:13 – Updated: 2026-09-24 14:27

Title

RabbitMQ: Atom table exhaustion via stream `chunk_selector`

Summary

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied <<"chunk_selector">> property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.

Severity

6 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-24 14:27 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/rabbitmq/rabbitmq-server/secur…	x_refsource_CONFIRM
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rabbitmq	rabbitmq-server	Affected: >= 3.13.0, < 3.13.15 Affected: >= 4.0.0, < 4.0.20 Affected: >= 4.1.0, < 4.1.11 Affected: >= 4.2.0, < 4.2.6 Affected: >= 4.3.0, < 4.3.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-66071 (GCVE-0-2026-66071)

Vulnerability from cvelistv5 – Published: 2026-09-25 16:11 – Updated: 2026-09-25 17:53

Title

RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values

Summary

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom() to convert to a tag atom. The token signature is verified first, so the attacker cannot forge scopes , but in IdP configurations where scope content is user-influenced, each login with a novel tag value leaks one In deployments where users can influence the scopes included in their IdP-issued JWT rabbitmqauthbackendoauth2 enabled IdP permits attacker-influenced scope values in signed tokens. This issue is fixed in versions 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/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 2026-09-25 17:53 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

5 references

URL	Tags
https://github.com/rabbitmq/rabbitmq-server/secur…	x_refsource_CONFIRM
https://github.com/rabbitmq/rabbitmq-server/commi…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/commi…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rabbitmq	rabbitmq-server	Affected: >= 3.13.0, < 3.13.15 Affected: >= 4.0.0, < 4.0.22 Affected: >= 4.1.0, < 4.1.11 Affected: >= 4.2.0, < 4.2.6 Affected: >= 4.3.0, < 4.3.1

Show details on NVD website

JSON

To clipboard

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          "name": "https://github.com/rabbitmq/rabbitmq-server/commit/9a44124d9c932d6fc7d2a3b945e5a143e547bcb6",
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            "x_refsource_MISC"
          ],
          "url": "https://github.com/rabbitmq/rabbitmq-server/commit/9a44124d9c932d6fc7d2a3b945e5a143e547bcb6"
        },
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          "name": "https://github.com/rabbitmq/rabbitmq-server/commit/c5690583a53789a3bf00cca508b43e8246db0d11",
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          "url": "https://github.com/rabbitmq/rabbitmq-server/commit/c5690583a53789a3bf00cca508b43e8246db0d11"
        },
        {
          "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6",
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        "advisory": "GHSA-89p2-f5cv-x5cg",
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      "title": "RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values"
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CVE-2026-65976 (GCVE-0-2026-65976)

Vulnerability from cvelistv5 – Published: 2026-08-17 21:00 – Updated: 2026-08-18 17:47

Title

Deskflow: Clipboard receiver can accumulate data beyond Deskflow's configured clipboard size limit

Summary

Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.300, a connected peer can send repeated DCLP DataChunk messages to ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp, causing the server path in src/lib/server/ClientProxy1_6.cpp or client path in src/lib/client/ServerProxy.cpp to append data beyond the DataStart declared size and configured clipboard limit before DataEnd validation, exhausting receiver memory. This issue is fixed in continuous build 1.26.0.300.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 17:19 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/deskflow/deskflow/security/adv…	x_refsource_CONFIRM
https://github.com/deskflow/deskflow/commit/8a535…	x_refsource_MISC
https://github.com/deskflow/deskflow/commit/bcd3a…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
deskflow	deskflow	Affected: >= 1.17.0, < 1.26.0.300

Show details on NVD website

JSON

To clipboard

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CVE-2026-65827 (GCVE-0-2026-65827)

Vulnerability from cvelistv5 – Published: 2026-09-24 18:28 – Updated: 2026-09-24 19:22

Title

Docmost: Unbounded ZIP decompression (zip-bomb) in page import allows denial of service

Summary

Docmost is open-source collaborative wiki and documentation software. From 0.21.0 until 0.95.0, any authenticated workspace member with edit rights to a space can upload an archive to the page-import feature whose ZIP extraction routine does not limit total uncompressed size, per-entry size, or entry count. The extractor writes entries to the server temp directory and automatically extracts one nested ZIP, allowing an outer upload within the default 200 MB limit to expand by multiple GB. The resulting disk exhaustion can crash the import worker and degrade or take down the instance for all tenants. This issue is fixed in version 0.95.0.

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: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-24 19:22 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/docmost/docmost/security/advis…	x_refsource_CONFIRM
https://github.com/docmost/docmost/commit/0411088…	x_refsource_MISC
https://github.com/docmost/docmost/releases/tag/v0.95.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
docmost	docmost	Affected: >= 0.21.0, < 0.95.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-65819 (GCVE-0-2026-65819)

Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-11 01:07

Title

gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser

Summary

gopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded through DecodingLayerParser or DecodeFromBytes to trigger an unrecovered panic and remotely deny service. A patch commit is available at 210f25f.

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 2026-08-11 01:07 UTC

CWE

CWE-125 - Out-of-bounds Read
CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/gopacket/gopacket/security/adv…	x_refsource_CONFIRM
https://github.com/gopacket/gopacket/commit/210f2…	x_refsource_MISC
https://github.com/gopacket/gopacket/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
gopacket	gopacket	Affected: <= 1.7.0

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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