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.

2353 vulnerabilities reference this CWE, most recent first.

CVE-2026-113791 (GCVE-0-2026-113791)

Vulnerability from cvelistv5 – Published: 2026-10-21 15:37 – Updated: 2026-10-30 15:57

Title

pypdf: Possible large memory usage when parsing content streams

Summary

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing a content stream with many small operations, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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 2026-10-30 15:57 UTC

CWE

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

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/py-pdf/pypdf/security/advisori…	x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/4218	x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/18bd2981a7…	x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.21.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
py-pdf	pypdf	Affected: < 6.21.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-113790 (GCVE-0-2026-113790)

Vulnerability from cvelistv5 – Published: 2026-10-21 15:35 – Updated: 2026-10-28 01:18

Title

pypdf: Possible large memory usage when parsing arrays and dictionaries

Summary

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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 2026-10-28 01:18 UTC

CWE

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

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/py-pdf/pypdf/security/advisori…	x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/4218	x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/18bd2981a7…	x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.21.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
py-pdf	pypdf	Affected: < 6.21.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-113789 (GCVE-0-2026-113789)

Vulnerability from cvelistv5 – Published: 2026-10-21 15:33 – Updated: 2026-10-28 16:42

Title

pypdf: Possible long runtimes/large memory usage when retrieving form fields

Summary

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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 2026-10-28 16:42 UTC

CWE

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

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/py-pdf/pypdf/security/advisori…	x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/4219	x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/5ef728f0e1…	x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.21.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
py-pdf	pypdf	Affected: < 6.21.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-113789",
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        }
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CVE-2026-113729 (GCVE-0-2026-113729)

Vulnerability from cvelistv5 – Published: 2026-10-20 21:17 – Updated: 2026-10-27 11:07

Title

Moov signedxml: Unauthenticated denial of service in exclusive XML canonicalization

Summary

Moov signedxml is a pure Go library for processing signed XML documents. Prior to 1.4.1, ExclusiveCanonicalization in exclusivecanonicalization.go copies the complete accumulated namespace map at every nested element before reference digest or signature checks. Attacker-controlled XML containing deeply nested elements with many unused namespace declarations causes quadratic allocation growth with depth and linear growth with prefixes per level, allowing a comparatively small document to consume multiple gigabytes of memory and terminate the process. The condition is reachable through ValidateReferences without a valid signature, matching certificate, or prior authentication, and it does not bypass signature verification. This issue is fixed in version 1.4.1.

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 2026-10-27 11:07 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-407 - Inefficient Algorithmic Complexity
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M CNA

References

3 references

URL	Tags
https://github.com/moov-io/signedxml/security/adv…	x_refsource_CONFIRM
https://github.com/moov-io/signedxml/commit/da2cd…	x_refsource_MISC
https://github.com/moov-io/signedxml/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
moov-io	signedxml	Affected: < 1.4.1

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-113711 (GCVE-0-2026-113711)

Vulnerability from cvelistv5 – Published: 2026-10-20 17:49 – Updated: 2026-10-20 19:04

Title

ApostropheCMS: Unauthenticated resource exhaustion via pre-auth aposBigUpload processing in @apostrophecms/import-export

Summary

ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0 of ApostropheCMS and 3.7.0 of the import-export module, import routes invoke bigUploadMiddleware without an early authorize callback, allowing unauthenticated requests to perform upload initialization, chunk storage, temporary processing, and attacker-declared cleanup work before the later user check rejects the import. This issue is fixed in ApostropheCMS 4.33.0 and import-export 3.7.0.

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 2026-10-20 19:03 UTC

CWE

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

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/apostrophecms/apostrophe/secur…	x_refsource_CONFIRM
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/relea…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
apostrophecms	apostrophe	Affected: < 4.33.0
@apostrophecms	import-export	Affected: < 3.7.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-113666 (GCVE-0-2026-113666)

Vulnerability from cvelistv5 – Published: 2026-10-20 17:25 – Updated: 2026-10-20 17:43

Title

ApostropheCMS: Authenticated projection-exclusion prototype-member deletion in @apostrophecms/db-connect causes process-wide denial of service

Summary

ApostropheCMS is an open-source Node.js content management system. Prior to 1.1.0 of db-connect and 4.33.0 of ApostropheCMS, an account with view-draft access can submit a projection exclusion path that traverses through a constructor prototype chain to a shared prototype member when a consumer uses a SQLite, PostgreSQL, or multipostgres adapter and has a matching document. Every editing role has view-draft access, while guestApiAccess broadens this prerequisite to any logged-in account. The unsetNestedField helper then deletes the shared runtime member, causing persistent process-wide integrity and availability effects; the default MongoDB adapter is not affected. This issue is fixed in db-connect 1.1.0 and ApostropheCMS 4.33.0.

Severity

7.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-20 17:41 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

GitHub_M CNA

References

5 references

URL	Tags
https://github.com/apostrophecms/apostrophe/secur…	x_refsource_CONFIRM
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/relea…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/relea…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
apostrophecms	apostrophe	Affected: < 4.33.0
@apostrophecms	db-connect	Affected: < 1.1.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-113658 (GCVE-0-2026-113658)

Vulnerability from cvelistv5 – Published: 2026-10-20 16:56 – Updated: 2026-10-23 01:55

Title

ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory

Summary

ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.

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 2026-10-23 01:54 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-459 - Incomplete Cleanup
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/apostrophecms/apostrophe/secur…	x_refsource_CONFIRM
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
apostrophecms	apostrophe	Affected: < 4.33.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-113619 (GCVE-0-2026-113619)

Vulnerability from cvelistv5 – Published: 2026-10-20 12:23 – Updated: 2026-10-20 15:35

Title

Eclipse ioFog renders request templates before authentication

Summary

In Eclipse ioFog Controller versions 3.8.0 through 3.9.1, POST, PUT, and PATCH bodies on routes that enable template substitution are rendered by an uncapped Liquid engine before authentication and RBAC. The bearer check does not reject a missing or invalid token, and the auth rate limit applies only to user login routes. A small JSON body can stall or abort the Controller process. The anonymous caller does not receive the rendered result; the impact is availability of the control plane, including the agent API and in-process WebSocket relays on that process.

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 2026-10-20 15:34 UTC

CWE

CWE-400

Assigner

eclipse CNA

References

2 references

URL	Tags
https://gitlab.eclipse.org/security/vulnerability…
https://gitlab.eclipse.org/security/cve-assignmen…

Impacted products

1 product

Vendor	Product	Version
Eclipse Foundation	Eclipse ioFog	Affected: 3.8.0 , ≤ 3.9.1 (semver)

Credits

Eclipse Foundation Security Team

Show details on NVD website

JSON

To clipboard

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CVE-2026-112955 (GCVE-0-2026-112955)

Vulnerability from cvelistv5 – Published: 2026-10-20 15:53 – Updated: 2026-10-26 19:38

Title

ApostropheCMS: Import archives can exhaust server storage and deny service

Summary

ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, an authenticated importer can submit archives whose decompressed bytes, entry count, and entry sizes are not bounded before document-type authorization, and extraction or parsing failures can leave staging and extracted artifacts without unconditional cleanup. The already-hardened pre-authentication and write-error paths are separate, and current end-to-end denial-of-service impact from this residual path remains subject to maintainer validation. This issue is fixed in version 3.7.1.

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 2026-10-26 19:26 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/apostrophecms/apostrophe/secur…	x_refsource_CONFIRM
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/commi…	x_refsource_MISC
https://github.com/apostrophecms/apostrophe/relea…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
apostrophecms	apostrophe	Affected: < 4.34.0
@apostrophecms	import-export	Affected: < 3.7.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-112915 (GCVE-0-2026-112915)

Vulnerability from cvelistv5 – Published: 2026-10-20 14:28 – Updated: 2026-10-20 15:25

Title

filelock ReadWriteLock: a crafted lock database makes every acquire stall or hang regardless of timeout

Summary

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database without bounding schema and query work, allowing another local user who can replace the database to make acquisition stall or hang; versions from 3.20.4 expose this on initial per-instance opening, and versions from 3.30.0 repeat the exposure on every acquisition. This issue is fixed in version 4.2.1.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/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 2026-10-20 15:25 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/tox-dev/filelock/security/advi…	x_refsource_CONFIRM
https://github.com/tox-dev/filelock/pull/834	x_refsource_MISC
https://github.com/tox-dev/filelock/commit/5e3f2e…	x_refsource_MISC
https://github.com/tox-dev/filelock/releases/tag/4.2.1	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
tox-dev	filelock	Affected: >= 3.20.4, < 4.2.1

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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