Common Weakness Enumeration

CWE-405

Allowed-with-Review

Asymmetric Resource Consumption (Amplification)

Abstraction: Class · Status: Incomplete

The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric."

91 vulnerabilities reference this CWE, most recent first.

CVE-2026-72914 (GCVE-0-2026-72914)

Vulnerability from cvelistv5 – Published: 2026-08-10 21:13 – Updated: 2026-08-11 13:24
VLAI
Title
Mastodon: Exhausting data by an unauthenticated request to the admin retention API
Summary
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1, the administrative statistics endpoints handled by Api::V1::Admin::MeasuresController and Api::V1::Admin::RetentionController checked authorization only after beginning expensive calculations. Anonymous callers could submit keys, start_at, and end_at parameters that caused long-running SQL queries in Admin::Metrics::Measure, Admin::Metrics::Retention, and Admin::Metrics::Dimension::BaseDimension, allowing repeated requests to exhaust server resources. This issue is fixed in versions 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 13:24 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Impacted products
Vendor Product Version
mastodon mastodon Affected: < 4.4.21
Affected: >= 4.5.0-beta.1, < 4.5.14
Affected: >= 4.6.0-beta.1, < 4.6.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-54224 (GCVE-0-2026-54224)

Vulnerability from cvelistv5 – Published: 2026-06-18 12:56 – Updated: 2026-06-18 13:09
VLAI
Title
Denial of Service in UBB.threads
Summary
UBB.threads is vulnerable to Denial of Service (DoS). By sending multiple concurrent requests to view any user profile on instances with many registered users, an authenticated attacker can easily exhaust database resources and completely deny access to the application for other users. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 13:09 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
References
Impacted products
Vendor Product Version
UBB Systems UBB.threads Affected: 0 , ≤ 7.7.5 (semver)
Create a notification for this product.
Date Public
2026-06-18 12:56
Show details on NVD website

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CVE-2026-47774 (GCVE-0-2026-47774)

Vulnerability from cvelistv5 – Published: 2026-06-17 16:58 – Updated: 2026-08-24 12:07
VLAI
Title
Envoy vulnerable to HTTP/2 memory exhaustion via cookie header size bypass and HPACK amplification
Summary
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability in Envoy's HTTP/2 downstream request processing allows an unauthenticated remote client to trigger excessive memory consumption, potentially resulting in OOM termination of the Envoy process and denial of service. The issue arises from the combination of two behaviors. First, cookie header bytes are not fully accounted for during request header size validation in Envoy. Second, HPACK header block limits in oghttp2/quiche are enforced on encoded bytes without a corresponding limit on total decoded header size. Together, these behaviors allow a malicious client to cause large decoded header allocations while bypassing the intended request header size protections. Versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1 contain a fix. No complete workaround is known short of applying a fix. Possible temporary mitigations include disabling downstream HTTP/2 where operationally feasible; enforcing stricter request header and cookie limits before traffic reaches Envoy; and monitoring Envoy memory usage for abnormal growth under HTTP/2 traffic.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 18:00 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Impacted products
Vendor Product Version
envoyproxy envoy Affected: < 1.35.11
Affected: >= 1.36.0, < 1.36.7
Affected: >= 1.37.0, < 1.37.3
Affected: >= 1.38.0, < 1.38.1
Create a notification for this product.
Red Hat Red Hat OpenShift Service Mesh 2.6 Unaffected: 1781604724 , < * (rpm)
    cpe:/a:redhat:service_mesh:2.6::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Service Mesh 3.0 Unaffected: 1781069908 , < * (rpm)
    cpe:/a:redhat:service_mesh:3.0::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Service Mesh 3.1 Unaffected: 1781070158 , < * (rpm)
    cpe:/a:redhat:service_mesh:3.1::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Service Mesh 3.2 Unaffected: 1781070967 , < * (rpm)
    cpe:/a:redhat:service_mesh:3.2::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Service Mesh 3.3 Unaffected: 1781094520 , < * (rpm)
    cpe:/a:redhat:service_mesh:3.3::el9
Create a notification for this product.
Show details on NVD website

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CVE-2026-45557 (GCVE-0-2026-45557)

Vulnerability from cvelistv5 – Published: 2026-05-19 13:47 – Updated: 2026-05-19 14:57
VLAI
Title
Technitium DNS Server excessive DNSSEC requests
Summary
Technitium DNS Server aggressively tries to fetch missing RRSIG records or mismatched DNSKEY records. An attacker in control of a domain can cause a vulnerable system to generate excessive network traffic. Fixed in 15.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · cisa-cg (v2.0.3)
Decision recorded 2026-05-18 22:28 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
  • CWE-406 - Insufficient Control of Network Message Volume (Network Amplification)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Impacted products
Vendor Product Version
Technitium DNS Server Affected: 0 , < 15.0 (custom)
Unaffected: 15.0
Create a notification for this product.
Date Public
2026-05-19 00:00
Show details on NVD website

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CVE-2026-44296 (GCVE-0-2026-44296)

Vulnerability from cvelistv5 – Published: 2026-05-12 20:52 – Updated: 2026-05-13 12:18
VLAI
Title
Deskflow: TLS multiplexer DoS on failed `SSL_accept`
Summary
Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.167, a remote, unauthenticated denial of service (DoS) vulnerability affects Deskflow servers running with TLS enabled (the default). When any TCP peer connects to the listening port and its first bytes do not parse as a valid TLS ClientHello, SecureSocket::secureAccept enters its fatal-error branch and calls Arch::sleep(1) (a blocking 1-second sleep) on the multiplexer worker thread. That thread services every socket on the server, including established TLS clients delivering mouse motion, keyboard events, and clipboard updates. A single failed handshake therefore stalls input delivery to all connected screens for ~1 second, and a sustained drip of malformed connections (≥ 1/s) makes the server effectively unusable while the attack persists. This vulnerability is fixed in 1.26.0.167.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 12:14 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
References
Impacted products
Vendor Product Version
deskflow deskflow Affected: < 1.26.0.167
Create a notification for this product.
Show details on NVD website

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CVE-2026-35665 (GCVE-0-2026-35665)

Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-06-23 16:16 X_Open Source
VLAI
Title
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing
Summary
OpenClaw before 2026.3.24 contains an incomplete fix for CVE-2026-32011 where the Feishu webhook handler accepts request bodies with permissive limits of 1MB and 30-second timeout before signature verification. An unauthenticated attacker can exhaust server connection resources by sending concurrent slow HTTP POST requests to the Feishu webhook endpoint, blocking legitimate webhook deliveries.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 16:57 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.3.24 (semver)
Unaffected: 2026.3.24 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-03-27 00:00
Show details on NVD website

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CVE-2026-35626 (GCVE-0-2026-35626)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:26 – Updated: 2026-06-23 16:15 X_Open Source
VLAI
Title
OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook
Summary
OpenClaw before 2026.3.22 contains an unauthenticated resource exhaustion vulnerability in voice call webhook handling that buffers request bodies before provider signature checks. Attackers can send large or malicious webhook requests to exhaust server resources without authentication by bypassing signature validation.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-14 03:08 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.3.22 (semver)
Unaffected: 2026.3.22 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-03-24 00:00
Show details on NVD website

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CVE-2026-25611 (GCVE-0-2026-25611)

Vulnerability from cvelistv5 – Published: 2026-02-10 17:52 – Updated: 2026-02-11 15:21
VLAI
Title
Pre-Authentication Memory Exhaustion Denial of Service in MongoDB Server
Summary
A series of specifically crafted, unauthenticated messages can exhaust available memory and crash a MongoDB server.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 15:20 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
Impacted products
Vendor Product Version
MongoDB Inc MongoDB Server Affected: 8.2 , < 8.2.4 (semver)
Affected: 8.0 , < 8.0.18 (semver)
Affected: 7.0 , < 7.0.29 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-24324 (GCVE-0-2026-24324)

Vulnerability from cvelistv5 – Published: 2026-02-10 03:04 – Updated: 2026-02-10 16:17
VLAI
Title
Denial of service (DOS) vulnerability in SAP BusinessObjects Business Intelligence Platform (AdminTools)
Summary
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SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-10 16:16 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption
Assigner
Impacted products
Vendor Product Version
SAP_SE SAP BusinessObjects Business Intelligence Platform (AdminTools) Affected: ENTERPRISE 430
Affected: 2025
Affected: 2027
Create a notification for this product.
Show details on NVD website

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CVE-2026-23934 (GCVE-0-2026-23934)

Vulnerability from cvelistv5 – Published: 2026-08-18 12:18 – Updated: 2026-08-18 13:35
VLAI
Title
Frontend DoS via the validate.api.exists action
Summary
An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 12:51 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
References
Impacted products
Vendor Product Version
Zabbix Zabbix Affected: 7.4.0 , ≤ 7.4.11 (git)
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Mitigation
Architecture and Design

An application must make resources available to a client commensurate with the client's access level.

Mitigation
Architecture and Design

An application must, at all times, keep track of allocated resources and meter their usage appropriately.

Mitigation
System Configuration

Consider disabling resource-intensive algorithms on the server side, such as Diffie-Hellman key exchange.

No CAPEC attack patterns related to this CWE.