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.
5425 vulnerabilities reference this CWE, most recent first.
CVE-2026-7790 (GCVE-0-2026-7790)
Vulnerability from cvelistv5 – Published: 2026-05-11 18:06 – Updated: 2026-05-26 19:46
VLAI
EPSS
VEX
Title
Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS
Summary
Uncontrolled Resource Consumption vulnerability in ninenines cowlib (cow_http_te module) allows Excessive Allocation.
The chunked transfer-encoding parser in cow_http_te accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication (Len * 16 + digit), so parsing N hex digits requires O(N²) CPU work and O(N) memory. Additionally, when input is drip-fed, the parser discards the accumulated length on each partial read and restarts from zero on resumption, raising the cost to O(N³). An unauthenticated remote attacker can exploit this by sending an HTTP/1.1 request with Transfer-Encoding: chunked and a very long chunk-size hex string to cause denial of service through CPU exhaustion and memory amplification.
This vulnerability is associated with program file src/cow_http_te.erl and program routines cow_http_te:stream_chunked/2, cow_http_te:chunked_len/4.
This issue affects cowlib: from 0.6.0 before 2.16.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cna.erlef.org/cves/CVE-2026-7790.html | relatedthird-party-advisory |
| https://osv.dev/vulnerability/EEF-CVE-2026-7790 | related |
| https://github.com/ninenines/cowlib/commit/a4b803… | patch |
Impacted products
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CVE-2026-7528 (GCVE-0-2026-7528)
Vulnerability from cvelistv5 – Published: 2026-05-27 13:16 – Updated: 2026-05-27 15:30
VLAI
EPSS
VEX
Title
Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS
Summary
IBM Langflow OSS 1.0.0 through 1.9.0 could allow a denial of service due to uncontrolled resource consumption.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7273427 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.9.0
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.9.0:*:*:*:*:*:*:* |
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CVE-2026-7493 (GCVE-0-2026-7493)
Vulnerability from cvelistv5 – Published: 2026-05-27 01:26 – Updated: 2026-05-27 10:42
VLAI
EPSS
VEX
Title
Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.11.5 - Unauthenticated Denial of Service
Summary
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Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| croixhaug | Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin |
Affected:
0 , ≤ 1.6.11.5
(semver)
|
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CVE-2026-6844 (GCVE-0-2026-6844)
Vulnerability from cvelistv5 – Published: 2026-04-22 08:37 – Updated: 2026-04-23 14:48
VLAI
EPSS
VEX
Title
Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files
Summary
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-6844 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2460016 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
Date Public
2026-04-13 00:00
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CVE-2026-6797 (GCVE-0-2026-6797)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:45 – Updated: 2026-04-22 17:30
VLAI
EPSS
VEX
Title
Sanluan PublicCMS DocToHtmlUtils.java ZipSecureFile.setMinflateRatio resource consumption
Summary
A vulnerability was identified in Sanluan PublicCMS up to 6.202506.d. Affected by this vulnerability is the function ZipSecureFile.setMinflateRatio of the file common/src/main/java/com/publiccms/common/tools/DocToHtmlUtils.java. Such manipulation leads to resource consumption. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358491 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/358491/cti | signaturepermissions-required |
| https://vuldb.com/submit/794798 | third-party-advisory |
Impacted products
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CVE-2026-6607 (GCVE-0-2026-6607)
Vulnerability from cvelistv5 – Published: 2026-04-20 05:00 – Updated: 2026-04-20 11:37 X_Open Source
VLAI
EPSS
VEX
Title
lm-sys fastchat Worker API Endpoint api_generate resource consumption
Summary
A security vulnerability has been detected in lm-sys fastchat up to 0.2.36. This issue affects the function api_generate of the component Worker API Endpoint. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is c9e84b89c91d45191dc24466888de526fa04cf33. It is suggested to install a patch to address this issue. Commit ff66426 patched this issue in api_generate of base_model_worker.py and did miss other entry points.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358242 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/358242/cti | signaturepermissions-required |
| https://vuldb.com/submit/792227 | third-party-advisory |
| https://github.com/lm-sys/FastChat/issues/3833 | issue-tracking |
| https://github.com/lm-sys/FastChat/pull/3835 | issue-trackingpatch |
| https://gist.github.com/YLChen-007/87216a2d97a882… | exploit |
| https://github.com/lm-sys/FastChat/commit/c9e84b8… | patch |
| https://github.com/lm-sys/FastChat/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| lm-sys | fastchat |
Affected:
0.2.0
Affected: 0.2.1 Affected: 0.2.2 Affected: 0.2.3 Affected: 0.2.4 Affected: 0.2.5 Affected: 0.2.6 Affected: 0.2.7 Affected: 0.2.8 Affected: 0.2.9 Affected: 0.2.10 Affected: 0.2.11 Affected: 0.2.12 Affected: 0.2.13 Affected: 0.2.14 Affected: 0.2.15 Affected: 0.2.16 Affected: 0.2.17 Affected: 0.2.18 Affected: 0.2.19 Affected: 0.2.20 Affected: 0.2.21 Affected: 0.2.22 Affected: 0.2.23 Affected: 0.2.24 Affected: 0.2.25 Affected: 0.2.26 Affected: 0.2.27 Affected: 0.2.28 Affected: 0.2.29 Affected: 0.2.30 Affected: 0.2.31 Affected: 0.2.32 Affected: 0.2.33 Affected: 0.2.34 Affected: 0.2.35 Affected: 0.2.36 cpe:2.3:a:lm-sys:fastchat:*:*:*:*:*:*:*:* |
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CVE-2026-6601 (GCVE-0-2026-6601)
Vulnerability from cvelistv5 – Published: 2026-04-20 03:30 – Updated: 2026-04-20 16:09
VLAI
EPSS
VEX
Title
Lagom WHMCS Template Datatables resource consumption
Summary
A vulnerability has been found in Lagom WHMCS Template up to 2.4.2. This impacts an unknown function of the component Datatables. The manipulation leads to resource consumption. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358236 | vdb-entry |
| https://vuldb.com/vuln/358236/cti | signaturepermissions-required |
| https://vuldb.com/submit/791943 | third-party-advisory |
| https://github.com/devsamuelsantiago/lagom-whmcs-… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lagom | WHMCS Template |
Affected:
2.4.0
Affected: 2.4.1 Affected: 2.4.2 |
Credits
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CVE-2026-6416 (GCVE-0-2026-6416)
Vulnerability from cvelistv5 – Published: 2026-04-22 01:46 – Updated: 2026-04-22 12:57
VLAI
EPSS
VEX
Title
Tanium addressed an uncontrolled resource consumption vulnerability in Interact.
Summary
Tanium addressed an uncontrolled resource consumption vulnerability in Interact.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tanium | Interact |
Affected:
3.2.0 , < 3.2.202
(custom)
Affected: 3.5.0 , < 3.5.108 (custom) Affected: 3.8.0 , < 3.8.47 (custom) cpe:2.3:a:tanium:service_interact:3.2.196:*:*:*:*:*:*:* cpe:2.3:a:tanium:service_interact:3.5.102:*:*:*:*:*:*:* cpe:2.3:a:tanium:service_interact:3.8.46:*:*:*:*:*:*:* |
Date Public
2026-04-22 01:46
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CVE-2026-6060 (GCVE-0-2026-6060)
Vulnerability from cvelistv5 – Published: 2026-04-20 18:20 – Updated: 2026-04-20 18:48
VLAI
EPSS
VEX
Title
Possible DoS via SQL Box
Summary
A vulnerability in the SQL Box in the admin interface of OTRS leads to an uncontrolled resource consumption leading to a DoS against the webserver. will be killed by the systemThis issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.3.X
Severity
4.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
Date Public
2026-04-20 07:00
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CVE-2026-6051 (GCVE-0-2026-6051)
Vulnerability from cvelistv5 – Published: 2026-05-27 13:07 – Updated: 2026-05-27 14:41
VLAI
EPSS
VEX
Title
IBM® Db2® is vulnerable to a denial of service when executing a specially crafted query with a small statement heap
Summary
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service when executing a specially crafted query with a small statement heap.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7273558 | vendor-advisorypatch |
Impacted products
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"value": "\u003cp\u003eCustomers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent level for each impacted release: V11.5.9, and V12.1.4. They can be applied to any affected level of the appropriate release to remediate this vulnerability.\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eRelease\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eFixed in mod pack\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eDownload URL\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eV11.5\u003c/td\u003e\u003ctd\u003eTBD\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/defect/aCIgJ000000BxZR/dt466547\" rel=\"nofollow\"\u003eDT466547\u003c/a\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003eSpecial Build #81937 or later for V11.5.9 available at this link:\u003cbr\u003e\u003ca href=\"https://www.ibm.com/support/pages/node/7087189\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7087189\u003c/a\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cp\u003eV12.1\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003eTBD\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/defect/aCIgJ000000BxZR/dt466547\" rel=\"nofollow\"\u003eDT466547\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003eSpecial Build #83501 or later for V12.1.4 available at this link:\u003cbr\u003e\u003ca href=\"https://www.ibm.com/support/pages/node/7267513\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7267513\u003c/a\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eIBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.\u003c/p\u003e"
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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.