Common Weakness Enumeration

CWE-400

Discouraged

Uncontrolled Resource Consumption

Abstraction: Class · Status: Draft

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

6536 vulnerabilities reference this CWE, most recent first.

CVE-2026-109299 (GCVE-0-2026-109299)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-13 16:55
VLAI
Title
Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurrence Rule Validation
Summary
Open WebUI from 0.9.0 before 0.11.4 contains a denial of service vulnerability that allows authenticated users with automations permission to stall the instance by submitting unsatisfiable recurrence rules. Attackers can repeatedly send rules like February 30th to the automations create or update endpoints, blocking the shared event loop for seconds per request.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:49 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.9.0 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Credits
Show details on NVD website

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CVE-2026-109298 (GCVE-0-2026-109298)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-13 15:46
VLAI
Title
Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowledge Search Regex
Summary
Open WebUI 0.11.0 before 0.11.4 compiles user-chosen grep patterns for its knowledge and chat file search tools with a regex engine that expands nested counted repetition unbounded at compile time and caches the result. Authenticated users can have the model call grep_knowledge_files with short nested-repetition patterns, blocking the event loop and exhausting worker memory.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:45 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.11.0 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Show details on NVD website

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CVE-2026-109297 (GCVE-0-2026-109297)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-12 16:04
VLAI
Title
Open WebUI 0.11.0 before 0.11.4 Denial of Service via Automation Recurrence Rules
Summary
Open WebUI 0.11.0 before 0.11.4 contains a denial of service vulnerability in the automation recurrence-rule validator, whose sub-daily frequency guard parses rule text more strictly than the calendar library that executes it. Users permitted to create automations can submit whitespace-folded rules (or, in 0.11.0, lowercase frequencies or omitted RRULE prefixes) that expand per-second synchronously, blocking the shared event loop for minutes per request and on every scheduler poll.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.11.0 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Show details on NVD website

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CVE-2026-109294 (GCVE-0-2026-109294)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-13 16:55
VLAI
Title
Open WebUI 0.6.42 before 0.11.4 Memory Exhaustion via Compressed Remote Image
Summary
Open WebUI from 0.6.42 before 0.11.4 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory by supplying compressed remote image URLs in chat messages. Attackers can point the image field at a host returning gzip-encoded responses, which get_image_base64_from_url decompresses unbounded, causing denial of service for all users.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:49 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.6.42 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Show details on NVD website

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CVE-2026-109149 (GCVE-0-2026-109149)

Vulnerability from cvelistv5 – Published: 2026-10-13 09:30 – Updated: 2026-10-13 09:30
VLAI
Title
beautifier js-beautify memory allocation
Summary
A weakness has been identified in beautifier js-beautify up to 1.15.1/2.0.3. The affected element is an unknown function. Executing a manipulation can lead to uncontrolled memory allocation. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
CWE
  • CWE-789 - Uncontrolled Memory Allocation
  • CWE-400 - Resource Consumption
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3876 records in the last 180 days details
Impacted products
Vendor Product Version
beautifier js-beautify Affected: 1.15.0
Affected: 1.15.1
Affected: 2.0.0
Affected: 2.0.1
Affected: 2.0.2
Affected: 2.0.3
    cpe:2.3:a:beautifier:js-beautify:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-109144 (GCVE-0-2026-109144)

Vulnerability from cvelistv5 – Published: 2026-10-13 09:15 – Updated: 2026-10-13 13:11
VLAI
Title
wbond certvalidator Certificate Path Builder resource consumption
Summary
A vulnerability was identified in wbond certvalidator up to 0.11.1. This issue affects some unknown processing of the component Certificate Path Builder. Such manipulation leads to resource consumption. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:11 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3876 records in the last 180 days details
References
Impacted products
Vendor Product Version
wbond certvalidator Affected: 0.11.0
Affected: 0.11.1
    cpe:2.3:a:wbond:certvalidator:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-108768 (GCVE-0-2026-108768)

Vulnerability from cvelistv5 – Published: 2026-10-11 18:59 – Updated: 2026-10-13 19:14
VLAI
Title
zhayujie CowAgent Streaming Tool-Call Argument json.loads allocation of resources
Summary
A vulnerability was identified in zhayujie CowAgent up to 2.2.0. Affected by this issue is the function json.loads of the component Streaming Tool-Call Argument Handler. The manipulation leads to allocation of resources. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 19:14 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3876 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/416550 vdb-entrytechnical-description
https://vuldb.com/vuln/416550/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108768 third-party-advisory
https://vuldb.com/submit/958026 third-party-advisory
https://github.com/lche511/cve/tree/main/CowAgent… exploit
Impacted products
Vendor Product Version
zhayujie CowAgent Affected: 2.0
Affected: 2.1
Affected: 2.2.0
    cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-108683 (GCVE-0-2026-108683)

Vulnerability from cvelistv5 – Published: 2026-10-11 14:30 – Updated: 2026-10-13 13:45 X_Open Source
VLAI
Title
zhayujie CowAgent Media Download memory allocation
Summary
A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9. The impacted element is an unknown function of the component Media Download Handler. Such manipulation leads to uncontrolled memory allocation. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.2.0 is sufficient to resolve this issue. The name of the patch is b7967210268fc4c0afea1078223e74e7e96a8a54. You should upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:44 UTC
CWE
  • CWE-789 - Uncontrolled Memory Allocation
  • CWE-400 - Resource Consumption
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3876 records in the last 180 days details
Impacted products
Vendor Product Version
zhayujie CowAgent Affected: 2.1.0
Affected: 2.1.1
Affected: 2.1.2
Affected: 2.1.3
Affected: 2.1.4
Affected: 2.1.5
Affected: 2.1.6
Affected: 2.1.7
Affected: 2.1.8
Affected: 2.1.9
Unaffected: 2.2.0
    cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-108577 (GCVE-0-2026-108577)

Vulnerability from cvelistv5 – Published: 2026-10-11 12:30 – Updated: 2026-10-11 12:30
VLAI
Title
Konstanty Bialkowski libmodplug ABC Music Format load_abc.cpp abc_add_gchord resource consumption
Summary
A vulnerability was determined in Konstanty Bialkowski libmodplug up to 0.8.9.1. This issue affects the function abc_add_gchord of the file src/load_abc.cpp of the component ABC Music Format Parser. This manipulation causes resource consumption. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3876 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/416234 vdb-entrytechnical-description
https://vuldb.com/vuln/416234/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108577 third-party-advisory
https://vuldb.com/submit/956556 third-party-advisory
https://vuldb.com/submit/956555 third-party-advisory
Impacted products
Vendor Product Version
Konstanty Bialkowski libmodplug Affected: 0.8.9.0
Affected: 0.8.9.1
    cpe:2.3:a:konstanty_bialkowski:libmodplug:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-108545 (GCVE-0-2026-108545)

Vulnerability from cvelistv5 – Published: 2026-10-10 14:15 – Updated: 2026-10-10 14:15
VLAI
Title
SillyTavern 1.12.13 through 1.19.0 Pre-Authentication Denial of Service via Body Parsing
Summary
SillyTavern 1.12.13 through 1.19.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust resources because body-parser middleware runs before authentication and whitelist checks. Attackers can send large or compressed JSON or urlencoded bodies up to 500 MB, optionally in parallel, to exhaust memory and CPU and deny service.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
Impacted products
Vendor Product Version
SillyTavern SillyTavern Affected: 1.12.13 , ≤ 1.19.0 (semver)
    cpe:2.3:a:sillytavern:sillytavern:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-09 00:00
Show details on NVD website

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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "description": "Uncontrolled Resource Consumption",
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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          "url": "https://hackmd.io/@haind/sillytavern-preauth-body-parser-dos"
        },
        {
          "tags": [
            "product"
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          "url": "https://github.com/SillyTavern/SillyTavern"
        },
        {
          "tags": [
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          "url": "https://github.com/SillyTavern/SillyTavern/blob/1.19.0/src/server-main.js#L110-L150"
        },
        {
          "name": "VulnCheck Advisory: SillyTavern 1.12.13 through 1.19.0 Pre-Authentication Denial of Service via Body Parsing",
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          "url": "https://www.vulncheck.com/advisories/sillytavern-1.12.13-through-1.19.0-pre-authentication-denial-of-service-via-body-parsing"
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      ],
      "title": "SillyTavern 1.12.13 through 1.19.0 Pre-Authentication Denial of Service via Body Parsing",
      "x_generator": {
        "engine": "vulncheck-endgame"
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-108545",
    "datePublished": "2026-10-10T14:15:52.273Z",
    "dateReserved": "2026-10-10T14:06:53.389Z",
    "dateUpdated": "2026-10-10T14:15:52.273Z",
    "state": "PUBLISHED"
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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.