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CWE-400 (未加控制的资源消耗(资源穷尽)) — Vulnerability Class 2079

2079 vulnerabilities classified as CWE-400 (未加控制的资源消耗(资源穷尽)). AI Chinese analysis included.

CWE-400 represents a critical resource management weakness where software fails to properly control the allocation and maintenance of finite system resources, such as memory, CPU cycles, or file descriptors. Attackers typically exploit this vulnerability by triggering actions that consume excessive resources, leading to denial-of-service conditions that degrade performance or crash the application entirely. This often occurs through crafted inputs that force infinite loops, excessive data processing, or unbounded memory allocation. To mitigate this risk, developers must implement strict resource limits, including timeouts, maximum iteration counts, and memory caps. Additionally, employing robust input validation and monitoring tools helps detect abnormal consumption patterns early. By enforcing these controls, engineers ensure that applications remain resilient against resource exhaustion attacks, maintaining availability and stability even under malicious stress or unexpected load spikes.

MITRE CWE Description
The product does not properly control the allocation and maintenance of a limited resource.
Common Consequences (2)
Availability DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other)
If an attacker can trigger the allocation of the limited resources, but the number or size of the resources is not controlled, then the most common result is denial of service. This would prevent valid users from accessing the product, and it could potentially have an impact on the surrounding envir…
Access Control, Other Bypass Protection Mechanism, Other
In some cases it may be possible to force the product to "fail open" in the event of resource exhaustion. The state of the product -- and possibly the security functionality - may then be compromised.
Mitigations (4)
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, perha…
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 preven…
Architecture and Design Ensure that protocols have specific limits of scale placed on them.
Implementation Ensure that all failures in resource allocation place the system into a safe posture.
Examples (2)
The following example demonstrates the weakness.
class Worker implements Executor { ... public void execute(Runnable r) { try { ... } catch (InterruptedException ie) { // postpone response Thread.currentThread().interrupt(); } } public Worker(Channel ch, int nworkers) { ... } protected void activate() { Runnable loop = new Runnable() { public void run() { try { for (;;) { Runnable r = ...; r.run(); } } catch (InterruptedException ie) { ... } } }; new Thread(loop).start(); } }
Bad · Java
This code allocates a socket and forks each time it receives a new connection.
sock=socket(AF_INET, SOCK_STREAM, 0); while (1) { newsock=accept(sock, ...); printf("A connection has been accepted\n"); pid = fork(); }
Bad · C
CVE ID Title CVSS Severity Published
CVE-2026-86019 Part-DB: Attachment Size Limit Bypass via API Base64 Upload — Part-DB-server 5.3 Medium 2026-10-23
CVE-2026-86018 Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads — Part-DB-server 5.3 Medium 2026-10-23
CVE-2026-115390 Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 Fuel Accounting Bypass DoS — wasmtime 5.7 Medium 2026-10-22
CVE-2026-115388 Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 Memory Exhaustion DoS via wasmtime-wasi-http Outgoing Body Write — wasmtime 6.2 Medium 2026-10-22
CVE-2026-115348 Mistune before 3.3.0 Quadratic-Time DoS via parse_link_text — mistune 7.5 High 2026-10-22
CVE-2026-108359 PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory Exhaustion (DoS) — PhpSpreadsheet 8.7 High 2026-10-22
CVE-2026-114610 fpdf2: Exponential SVG '<use>' expansion causes CPU and memory exhaustion in 'FPDF.image()' — fpdf2 6.5 Medium 2026-10-22
CVE-2026-75507 GraphQL-core: Denial of service via quadratic complexity in the OverlappingFieldsCanBeMerged validation rule — graphql-core 7.5 High 2026-10-22
CVE-2026-75508 GraphQL-core: Denial of service via comment tokens bypassing the parser's max_tokens limit — graphql-core 7.5 High 2026-10-22
CVE-2026-114603 OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api — opentelemetry-python 5.3 Medium 2026-10-22
CVE-2026-76290 Denial of Service (DoS) through Unauthenticated Package Downloads over the REST API in Splunk Enterprise — Splunk Enterprise 7.5 High 2026-10-21
CVE-2026-76288 Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterprise — Splunk Enterprise 7.5 High 2026-10-21
CVE-2026-96636 Pillow: Decompression-bomb protection bypass via multi-frame seek() in MPO and DCX (MpoImageFile.seek / DcxImageFile.seek) — Pillow 6.5 Medium 2026-10-21
CVE-2026-96640 Pillow PDF append accepts malformed shared page-tree DAG causing resource exhaustion — Pillow 8.2 High 2026-10-21
CVE-2026-96637 Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS — Pillow 7.1 High 2026-10-21
CVE-2026-96638 Pillow: BMP RLE decoder memory-amplification DoS via unbounded delta escape / absolute mode — Pillow 6.5 Medium 2026-10-21
CVE-2026-114144 toml-node: Uncontrolled resource consumption (CPU DoS) via unbounded-length integer literals in toml.parse() — toml-node 7.5 High 2026-10-21
CVE-2026-114138 Django REST framework: Accept header with many large quoted parameters burns ~19s of CPU per request in content negotiation — django-rest-framework 7.5 High 2026-10-21
CVE-2026-111817 Apache Traffic Server: Dropping chunked trailers stalls a passthrough transfer until timeout — Apache Traffic Server 5.3 Medium 2026-10-21
CVE-2026-111810 Apache Traffic Server: Unthrottled per-header diagnostic logging enables a log-flood denial of service — Apache Traffic Server 7.5 High 2026-10-21
CVE-2026-111805 Apache Traffic Server: HTTP/2 Content-Length truncation lets a client trigger backend worker-pool exhaustion — Apache Traffic Server 8.6 High 2026-10-21
CVE-2026-20356 Multiple Cisco Products Snort 3 Software Hardening Release: October 2026 — Cisco Cyber Vision 7.5 High 2026-10-21
CVE-2026-113795 pypdf: Possible large memory usage for streams with multiple filters — pypdf 6.0 Medium 2026-10-21
CVE-2026-113791 pypdf: Possible large memory usage when parsing content streams — pypdf 6.0 Medium 2026-10-21
CVE-2026-113790 pypdf: Possible large memory usage when parsing arrays and dictionaries — pypdf 6.0 Medium 2026-10-21
CVE-2026-113789 pypdf: Possible long runtimes/large memory usage when retrieving form fields — pypdf 6.0 Medium 2026-10-21
CVE-2026-81755 Apache bRPC: Uncontrolled Resource Consumption via Excessive Streams in a Single RPC Request — Apache bRPC - - 2026-10-21
CVE-2026-78058 Apache bRPC: Unbounded Resource Consumption and Crash in the HTTP/2 Receive Path — Apache bRPC - - 2026-10-21
CVE-2026-61902 Apache bRPC: Memory Exhaustion Through Inconsistent Message Body Limits — Apache bRPC - - 2026-10-21
CVE-2026-41114 Apache IoTDB JDBC driver: Large-scale Memory Exhaustion via BigDecimal toPlainString in JDBC Driver — Apache IoTDB JDBC driver - - 2026-10-21

Vulnerabilities classified as CWE-400 (未加控制的资源消耗(资源穷尽)) represent 2079 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.