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CWE-770 (不加限制或调节的资源分配) — Vulnerability Class 827

827 vulnerabilities classified as CWE-770 (不加限制或调节的资源分配). AI Chinese analysis included.

CWE-770 represents a critical resource management weakness where software allocates reusable resources, such as memory, file descriptors, or database connections, without enforcing limits or throttling mechanisms. This vulnerability typically arises when applications accept untrusted input or handle high-volume requests, allowing malicious actors to trigger excessive resource consumption. By rapidly requesting numerous resources, attackers can exhaust system capacity, leading to denial-of-service conditions that degrade performance or crash the entire service. To mitigate this risk, developers must implement strict quotas, rate limiting, and connection pooling strategies. Enforcing maximum thresholds for resource allocation ensures that no single user or process can monopolize system assets, thereby maintaining stability and availability even under heavy load or targeted abuse attempts.

MITRE CWE Description
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Common Consequences (1)
AvailabilityDoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Mitigations (5)
RequirementsClearly specify the minimum and maximum expectations for capabilities, and dictate which behaviors are acceptable when resource allocation reaches limits.
Architecture and DesignLimit the amount of resources that are accessible to unprivileged users. Set per-user limits for resources. Allow the system administrator to define these limits. Be careful to avoid CWE-410.
Architecture and DesignDesign 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, and it will help the administrator to identify who is committing the abuse. The login application should be protected …
ImplementationAssume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range…
Architecture and DesignFor any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Examples (2)
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
In the following example a server socket connection is used to accept a request to store data on the local file system using a specified filename. The method openSocketConnection establishes a server socket to accept requests from a client. When a client establishes a connection to this service the getNextMessage method is first used to retrieve from the socket the name of the file to store the da…
int writeDataFromSocketToFile(char *host, int port) { char filename[FILENAME_SIZE]; char buffer[BUFFER_SIZE]; int socket = openSocketConnection(host, port); if (socket < 0) { printf("Unable to open socket connection"); return(FAIL); } if (getNextMessage(socket, filename, FILENAME_SIZE) > 0) { if (openFileToWrite(filename) > 0) { while (getNextMessage(socket, buffer, BUFFER_SIZE) > 0){ if (!(writeToFile(buffer) > 0)) break; } } closeFile(); } closeSocket(socket); }
Bad · C
CVE IDTitleCVSSSeverityPublished
CVE-2025-14435 Application-Level DoS via infinite re-render loop in user profile handling — Mattermost 6.8 Medium2026-01-16
CVE-2021-47793 Telegram Desktop 2.9.2 - Denial of Service (PoC) — Telegram Desktop 7.5 High2026-01-15
CVE-2021-47791 SmartFTP Client 10.0.2909.0 - 'Multiple' Denial of Service — SmartFTP Client 7.5 High2026-01-15
CVE-2026-22045 Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall — traefik 5.9 Medium2026-01-15
CVE-2021-47784 Cyberfox Web Browser 52.9.1 - Denial of Service (PoC) — Cyberfox Web Browser 7.5 High2026-01-15
CVE-2021-47771 RDP Manager 4.9.9.3 - Denial-of-Service (PoC) — RDP Manager 5.5 Medium2026-01-15
CVE-2021-47752 AWebServer GhostBuilding 18 - Denial of Service (DoS) — AWebServer GhostBuilding 7.5 High2026-01-15
CVE-2026-0897 Denial of Service in Keras via Excessive Memory Allocation in HDF5 Metadata — Keras 7.5 -2026-01-15
CVE-2026-22917 SICK TDC-X401GL 安全漏洞 — TDC-X401GL 4.3 Medium2026-01-15
CVE-2026-22036 Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion — undici 5.9 Medium2026-01-14
CVE-2026-0531 Allocation of Resources Without Limits or Throttling in Kibana Fleet — Kibana 6.5 Medium2026-01-13
CVE-2026-0530 Allocation of Resources Without Limits or Throttling in Kibana Leading to Excessive Allocation — Kibana 6.5 Medium2026-01-13
CVE-2024-58339 LlamaIndex <= 0.12.2 VannaQueryEngine SQL Execution Allows Resource Exhaustion — llama_index 7.5AIHighAI2026-01-12
CVE-2026-22773 vLLM is vulnerable to DoS in Idefics3 vision models via image payload with ambiguous dimensions — vllm 6.5 Medium2026-01-10
CVE-2025-10569 Allocation of Resources Without Limits or Throttling in GitLab — GitLab 6.5 Medium2026-01-09
CVE-2025-68151 CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages — coredns 7.5 -2026-01-08
CVE-2025-66560 Quarkus REST has potential worker thread starvation when HTTP connection is closed while waiting to write — quarkus 5.9 Medium2026-01-07
CVE-2025-15474 AuntyFey Smart Combination Lock BLE Connection Flood DoS — AuntyFey Smart Combination Lock 6.5 -2026-01-07
CVE-2020-36907 Extreme Networks Aerohive HiveOS <=11.x 11.x Unauthenticated Remote Denial of Service — Aerohive HiveOS 7.5 High2026-01-06
CVE-2025-69229 AIOHTTP vulnerable to DoS through chunked messages — aiohttp 7.5 -2026-01-05
CVE-2025-69228 AIOHTTP vulnerable to denial of service through large payloads — aiohttp 7.5 -2026-01-05
CVE-2025-68456 Unauthenticated Craft CMS users can trigger a database backup — cms 9.1 -2026-01-05
CVE-2025-64422 Rate-limit bypass on login via X-Forwarded-Host header — coolify 9.8 -2026-01-05
CVE-2025-57705 QTS, QuTS hero — QTS 6.8 -2026-01-02
CVE-2025-47208 QTS, QuTS hero — QTS 5.0 -2026-01-02
CVE-2022-50799 Fetch Softworks Fetch FTP Client 5.8.2 Remote CPU Consumption Denial of Service — Fetch Softworks Fetch FTP Client 7.5 High2025-12-30
CVE-2022-50695 SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x ICMP Flood Attack via Network Commands — Impact/Pulse/First 7.5 High2025-12-30
CVE-2025-68148 FreshRSS globally denies access to feed via proxy modifying to 429 Retry-After — FreshRSS 4.3 Medium2025-12-26
CVE-2025-11419 Keycloak: keycloak tls client-initiated renegotiation denial of service 7.5 High2025-12-23
CVE-2021-47713 Hasura GraphQL 1.3.3 Denial of Service via Malicious GraphQL Query — Hasura GraphQL 7.5 High2025-12-22

Vulnerabilities classified as CWE-770 (不加限制或调节的资源分配) represent 827 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.