Weakness (CWE)
CWE-400: Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
How to prevent it (4 mitigations)
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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.
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Architecture and Design
Mitigation of resource exhaustion attacks requires that the target system either:
- 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.
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.
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Architecture and Design
Ensure that protocols have specific limits of scale placed on them.
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Implementation
Ensure that all failures in resource allocation place the system into a safe posture.
Source: MITRE CWE-400
1,911 results · Clear filters · Feed
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High 7.5
OpENer v2.3.0 / commit 76b95cf contains an out-of-bounds read in the unconnected explicit messaging path. This allows a…
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High 7.5
EIPStackGroup OpENer v2.3 / master commit 76b95cf contains a buffer overflow in the GetAttributeList() implementation f…
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High 7.5
EIPStackGroup OpENer v2.3 and master up to commit 76b95cf contain an expired pointer dereference vulnerability in the E…
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High 7.5
EIPStackGroup OpENer v2.3.0/master up to commit 76b95cf contains an out-of-bounds read vulnerability in Connection Mana…
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High 7.5
IBM Guardium Data Protection Denial of Service
IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller. An unauthenticated remote attacker with network access to the edge-controller gRPC service can provide malformed task data that triggers an unchecked …
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High 7.5
league/commonmark 2.0.0 before 2.10.2 Quadratic DoS via TableStartParser
league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart() block-start scan. Unauthenticated attackers can submit a large paragraph of pip…
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High 7.5
IBM DataPower Gateway Denial of Service
IBM DataPower Gateway 11.0.0.0 through 11.0.0.2 could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.
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High 7.5
An issue in libming through 0.4.8 allows a remote attacker to cause a denial of service via the readtag_file() in src/b…
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High 7.5
AsyncHttpClient: Unbounded WebSocket permessage-deflate decompression enables a decompression-bomb denial of service when compression is enabled
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pip…
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High 8.7
Denial of Service in Absolute Secure Access
CVE-2026-97716 is a vulnerability in the connection set up sub-system of Secure Access servers prior to version 14.60. Unauthenticated attackers can send specially crafted traffic to the server and cause a persistent denial of service.
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High 7.1
Denial of Service in Absolute Secure Access
CVE-2026-97715 is a vulnerability in the client registration process of Secure Access servers prior to version 14.60. Authenticated attackers can pass malformed data to the server and cause a persistent denial of service.
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High 8.2
Denial of service vulnerability in Secure Access
CVE-2026-97714 is a is a vulnerability in the authentication sub-system of Secure Access servers prior to version 14.60. Attackers can send a malformed response during authentication and cause a persistent denial of service.
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High 7.5
Excelize: Unbounded spinCount in agile decryption burns CPU during OpenFile
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, agile decryption accepts an attacker-controlled spinCount and performs that many password-key derivation iterations before verifier validation. OpenF…
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High 7.5
CVE-2026-106550
Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype‑pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to construct…
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High 7.5
Gitea Actions memory exhaustion through large static matrices
Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow fil…
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High 8.7
Payload: ReDoS in Multipart Content-Type Validation
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a malformed multipart request body can cause multipart Content-Type processing to take an extremely long tim…
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High —
hickory-resolver: Unbounded TC-retry loop in `NameServerPool::try_send` (resource-exhaustion DoS)
When the `hickory-resolver` name server pool implementation receives an upstream response with the TC (truncated) header bit set, it re-queues the request to the same nameserver to retry with UDP transport disabled. However, the retry arm never inspects the t…
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High 7.8
In qsort of libufdt_sysdeps_vendor.c, there is a possible out-of-bounds write due to resource exhaustion. This could le…
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High 7.5CVE-2026-101160 Public exploit
WP Ultimate Review < 2.4.4 - Unauthenticated DoS via Non-Numeric Review Rating
The WP Ultimate Review WordPress plugin before 2.4.4 does not validate that a submitted review rating is numeric before storing it and later using it in numeric operations when rendering reviews, allowing unauthenticated users to make the reviewed content fai…
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High 7.5CVE-2026-101161 Public exploit
WP Ultimate Review < 2.4.4 - Unauthenticated DoS via Unset Display Settings in wp-reviews Shortcode
The WP Ultimate Review WordPress plugin before 2.4.4 does not prevent unauthenticated users from storing crafted review content that makes the reviewed page fail with a fatal error on every subsequent visit, resulting in a persistent denial of service when th…
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High 7.5
probe-image-size: Quadratic-time Denial of Service in the SVG Parser
probe-image-size gets image dimensions without downloading the entire file. Prior to 7.4.0, lib/parse_sync/svg.js and lib/parse_stream/svg.js use the searching regular expression /<[-_.:a-zA-Z0-9][^>]*>/, which repeatedly scans to the end of input when attack…
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High 7.5
Apache Directory LDAP API: Denial of service via crafted telephone number values
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. This issue affects Apache Directory…
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High 7.5
OMGF < 6.3.11 - Unauthenticated DoS via do_optimize
The OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. WordPress plugin before 6.3.11 does not require authentication or a valid nonce on an action that issues a slow server-side loopback request, allowing unauthenticated attackers to exhaust the site's …
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High 7.5
389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue
A flaw was found in 389-ds-base. An unauthenticated remote attacker can send a complete LDAP operation followed by the first bytes of an incomplete LDAPMessage on the same connection, causing the server to hand that connection to a second worker thread before…
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High 7.5
jackson-dataformats-binary: Smile parser does not enforce StreamReadConstraints.maxNameLength, enabling memory-exhaustion denial of service
The Smile parser in FasterXML jackson-dataformats-binary never invokes StreamReadConstraints.validateNameLength() when decoding JSON object property names, so the maxNameLength limit is not enforced for this format. SmileParser._handleLongFieldName() grows it…
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High 7.5
jackson-dataformats-binary: CBOR parser does not enforce StreamReadConstraints.maxNameLength, enabling memory-exhaustion denial of service
The CBOR parser in FasterXML jackson-dataformats-binary never invokes StreamReadConstraints.validateNameLength() when decoding JSON object property names, so the maxNameLength limit is not enforced for this format. CBORParser._decodeLongerName() decodes a def…
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High —
devalue: Repeated primitive strings cause quadratic expansion in uneval
Under very constrained circumstances, data that was `parse`d and then passed to `uneval` could turn a small payload into a very large serialized string.
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High 7.5
Tornado before 6.5.9 Denial of Service via CurlAsyncHTTPClient
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that acc…
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High 8.7
pypdf: Possible large memory usage when retrieving alphabetical page labels
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application r…
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High 8.7
pypdf: Possible long runtimes with large amount of embedded files
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF containing many embedded files can cause the dictionary-based attachments API in pypdf/_doc_common.py to reparse the full attachment list for each content lookup, producin…
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High 8.7
pypdf: Possible long runtimes when generating appearance streams
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application…
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High 8.7
pypdf: Possible long runtimes for partially malformed FlateDecode streams (Follow-up)
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF containing a partially malformed /FlateDecode stream with padded data can force pypdf/filters.py to use inefficient byte-by-byte decompression while the earlier recovery c…
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High 8.7
pypdf: Possible large memory usage when parsing font data
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond th…
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High 8.7
pypdf: Possible large memory usage for large /ToUnicode streams (Follow-up 2)
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can place unusually large source-code or destination-string tokens in a font /ToUnicode mapping, causing pypdf/_cmap.py parse_bfchar to decode and retain oversized values …
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High 8.7
pypdf: Possible long runtimes/large memory usage when parsing indirect objects
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py t…
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High 8.7
pypdf: Possible large memory usage when retrieving Roman page labels
pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document p…
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High 8.7
Fireware OS Resource Exhaustion in Login Process Allows Denial of Service
An uncontrolled resource consumption vulnerability in the Fireware OS login process (wgagent) allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted request.
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High 7.1
Fireware OS Uncontrolled Resource Consumption in Diagnostic Tasks Allows Denial of Service
An uncontrolled resource consumption vulnerability in Fireware OS's diagnostic tasks feature allows a low-privileged, authenticated user to cause a denial of service of the system's diagnostic tools by repeatedly starting and aborting a specially crafted diag…
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High 7.1
Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant B
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files …
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High 7.5
DataTransfer depends on phpspreadsheet version vulnerable to CVE-2026-59933 (XLS/OLE memory exhaustion)
Dependency on Vulnerable Third-Party Component and Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - DataTransfer Extension allows Excessive Allocation. This issue affects Mediawiki - DataTransfer Extension: from 1.46.0 befor…