Common Weakness Enumeration
CWE-923
Allowed-with-ReviewImproper Restriction of Communication Channel to Intended Endpoints
Abstraction: Class · Status: Incomplete
The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
119 vulnerabilities reference this CWE, most recent first.
CVE-2026-23904 (GCVE-0-2026-23904)
Vulnerability from cvelistv5 – Published: 2026-07-29 09:07 – Updated: 2026-07-29 14:00
VLAI
EPSS
VEX
Title
Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy
Summary
Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.
This issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.
Users are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 14:00 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Kyuubi |
Affected:
1.8.0 , < 1.12.0
(semver)
|
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CVE-2026-23664 (GCVE-0-2026-23664)
Vulnerability from cvelistv5 – Published: 2026-03-10 17:04 – Updated: 2026-06-19 18:17
VLAI
EPSS
VEX
Title
Azure IoT Explorer Information Disclosure Vulnerability
Summary
Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 14:46 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Azure IoT Explorer |
Affected:
1.0.0 , < 0.15.13
(custom)
cpe:2.3:a:microsoft:azure_iot_explorer:*:*:*:*:*:*:*:* |
Date Public
2026-03-10 14:00
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CVE-2026-22726 (GCVE-0-2026-22726)
Vulnerability from cvelistv5 – Published: 2026-04-30 23:17 – Updated: 2026-05-01 14:19
VLAI
EPSS
VEX
Title
Route Services Firewall Bypass
Summary
Route Services can be leveraged to send app traffic to network destinations outside of an app's configured egress rules. As a result, a malicious developer with access to Cloudfoundry could configure a route-service that would allow it to send requests to HTTP services on internal networks reachable by the Gorouter, which may not have previously had direct access from outside networks, or from the application.
Routing release: affected from v0.118.0 through v0.371.0 (inclusive); upgrade to v0.372.0 or greater. CF Deployment: affected from v0.0.2 through v54.14.0 (inclusive); upgrade to v55.0.0 or greater (includes routing_release v0.372.0).
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 14:19 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| CloudFoundry Foundation | Routing release |
Affected:
v0.118.0 , < v0.372.0
(custom)
|
|
| CloudFoundry Foundation | CF Deployment |
Affected:
v0.0.2 , < v55.0.0
(custom)
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CVE-2026-18655 (GCVE-0-2026-18655)
Vulnerability from cvelistv5 – Published: 2026-08-03 19:04 – Updated: 2026-08-03 19:52
VLAI
EPSS
VEX
Title
Broker Credential and OAuth Token Disclosure in AWS Labs Amazon MQ MCP Server via Prompt Injection
Summary
Improper restriction of intended endpoints in the RabbitMQ broker connection tools of the Amazon MQ MCP Server (awslabs.amazon-mq-mcp-server) before 2.0.24 may allow a remote unauthenticated actor (via prompt injection) to obtain Amazon MQ for RabbitMQ broker credentials or OAuth access tokens sent to a crafted endpoint controlled through a broker hostname introduced in the MCP client context.
To remediate this issue, users should upgrade to version 2.0.24.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:52 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://pypi.org/project/awslabs.amazon-mq-mcp-se… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/awslabs/mcp/security/advisorie… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | amazon-mq-mcp-server |
Affected:
0 , ≤ 2.0.23
(custom)
cpe:2.3:a:aws:amazon-mq-mcp-server:*:*:*:*:*:*:*:* |
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CVE-2026-12539 (GCVE-0-2026-12539)
Vulnerability from cvelistv5 – Published: 2026-06-18 13:51 – Updated: 2026-08-13 13:33
VLAI
EPSS
VEX
Title
Docker Sandboxes ICMP egress restriction bypass after daemon restart
Summary
Docker Sandboxes (sbx) blocks ICMP egress with an authorizer applied only at network-creation time, and does not re-apply it to networks rebuilt from disk when the Docker daemon restarts, so a restart-surviving sandbox forwards ICMP to arbitrary hosts. A workload inside a sandbox, which the threat model treats as untrusted, can therefore defeat the documented ICMP egress block to perform network reconnaissance and exfiltrate data over an ICMP covert channel, regardless of the configured allowlist.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 14:54 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://docs.docker.com/ai/sandboxes/ | product |
| https://github.com/docker/sbx-releases/releases/t… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Docker | Docker Sandboxes |
Affected:
0.14.0 , < 0.33.0
(semver)
cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:* |
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CVE-2026-12039 (GCVE-0-2026-12039)
Vulnerability from cvelistv5 – Published: 2026-06-18 13:48 – Updated: 2026-08-13 13:33
VLAI
EPSS
VEX
Title
Docker Sandboxes network egress allowlist bypass via unfiltered DNS resolution
Summary
Docker Sandboxes (sbx) enforces an HTTP/S-only egress allowlist but does not apply it to DNS resolution: the per-network embedded DNS server forwards any queried name to the host resolver whenever the network is internet-connected, without consulting the policy. A workload inside a sandbox, which the threat model treats as untrusted, can therefore encode data into DNS labels for an attacker-controlled domain and exfiltrate it through a DNS covert channel, bypassing the configured allowlist.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 15:00 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://docs.docker.com/ai/sandboxes/ | product |
| https://github.com/docker/sbx-releases/releases/t… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Docker | Docker Sandboxes |
Affected:
0.13.0 , < 0.33.0
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cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:* |
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CVE-2026-8920 (GCVE-0-2026-8920)
Vulnerability from cvelistv5 – Published: 2026-07-15 02:00 – Updated: 2026-07-15 13:12
VLAI
EPSS
VEX
Summary
Improper Restriction of Communication Channel to Intended Endpoints and External Control of File Name or Path in Aura Wallpaper Service allow a local user to perform file operations by sending crafted commands containing an arbitrary file path and bypassing the service’s path restrictions . On specific models , this can also cause a single feature to become unavailable .
Refer to the ' Security Update for Aura Wallpaper Service ' section on the ASUS Security Advisory for more information.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:12 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ASUS | Aura Wallpaper Service |
Affected:
v2.1.8.0 , ≤ v2.1.15.0
(custom)
cpe:2.3:a:asus:aura_wallpaper_service:*:*:*:*:*:*:*:* |
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CVE-2025-62843 (GCVE-0-2025-62843)
Vulnerability from cvelistv5 – Published: 2026-03-20 16:22 – Updated: 2026-03-25 14:01
VLAI
EPSS
VEX
Title
QuRouter
Summary
An improper restriction of communication channel to intended endpoints vulnerability has been reported to affect QHora. If an attacker gains physical access, they can then exploit the vulnerability to gain the privileges that were intended for the original endpoint.
We have already fixed the vulnerability in the following version:
QuRouter 2.6.3.009 and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:00 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QuRouter |
Affected:
2.6.x , < 2.6.3.009
(custom)
|
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CVE-2025-61939 (GCVE-0-2025-61939)
Vulnerability from cvelistv5 – Published: 2026-01-07 19:56 – Updated: 2026-01-07 20:07
VLAI
EPSS
VEX
Title
Columbia Weather Systems MicroServer Improper Restriction of Communication Channel to Intended Endpoints
Summary
An unused function in MicroServer can start a reverse SSH connection to a vendor registered domain, without mutual authentication. An attacker on the local network with admin access to the web server, and the ability to manipulate DNS responses, can redirect the SSH connection to an attacker controlled device.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 20:07 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Columbia Weather Systems | MicroServer |
Affected:
0 , < MS_4.1_14142
(custom)
|
Date Public
2026-01-06 18:00
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CVE-2025-58742 (GCVE-0-2025-58742)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:36 – Updated: 2026-01-21 16:14
VLAI
EPSS
VEX
Title
Insufficient Configuration Protections Enable Database Credential Interception in Milner ImageDirector Capture
Summary
Insufficiently Protected Credentials, Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the Connection Settings dialog in Milner ImageDirector Capture on Windows allows Adversary in the Middle (AiTM) by modifying the 'Server' field to redirect client authentication.This issue affects ImageDirector Capture: from 7.0.9 before 7.6.3.25808.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:40 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://sra.io/advisories | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Milner | ImageDirector Capture |
Affected:
7.0.9 , < 7.6.3.25808
(semver)
|
Date Public
2026-01-20 19:00
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No mitigation information available for this CWE.
CAPEC-161: Infrastructure Manipulation
An attacker exploits characteristics of the infrastructure of a network entity in order to perpetrate attacks or information gathering on network objects or effect a change in the ordinary information flow between network objects. Most often, this involves manipulation of the routing of network messages so, instead of arriving at their proper destination, they are directed towards an entity of the attackers' choosing, usually a server controlled by the attacker. The victim is often unaware that their messages are not being processed correctly. For example, a targeted client may believe they are connecting to their own bank but, in fact, be connecting to a Pharming site controlled by the attacker which then collects the user's login information in order to hijack the actual bank account.
CAPEC-481: Contradictory Destinations in Traffic Routing Schemes
Adversaries can provide contradictory destinations when sending messages. Traffic is routed in networks using the domain names in various headers available at different levels of the OSI model. In a Content Delivery Network (CDN) multiple domains might be available, and if there are contradictory domain names provided it is possible to route traffic to an inappropriate destination. The technique, called Domain Fronting, involves using different domain names in the SNI field of the TLS header and the Host field of the HTTP header. An alternative technique, called Domainless Fronting, is similar, but the SNI field is left blank.
CAPEC-501: Android Activity Hijack
An adversary intercepts an implicit intent sent to launch a Android-based trusted activity and instead launches a counterfeit activity in its place. The malicious activity is then used to mimic the trusted activity's user interface and prompt the target to enter sensitive data as if they were interacting with the trusted activity.
CAPEC-697: DHCP Spoofing
An adversary masquerades as a legitimate Dynamic Host Configuration Protocol (DHCP) server by spoofing DHCP traffic, with the goal of redirecting network traffic or denying service to DHCP.