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.
148 vulnerabilities reference this CWE, most recent first.
CVE-2026-33803 (GCVE-0-2026-33803)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:04 – Updated: 2026-07-10 13:30
VLAI
EPSS
VEX
Title
Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker
Summary
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device.
Due to a wrong initialization, a process which should only be able to communicate internally within the device can be reached over the network via an open port. This leads to a device being inadvertently exposed and increased CPU cycles spent processing ingress packets.
This issue affects Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-S5-EVO,
* 24.4 versions before 24.4R2-S4-EVO,
* 25.2 versions before 25.2R2-S1-EVO,
* 25.4 versions before 25.4R1-S2-EVO.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 13:30 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110078 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Affected: 24.2 , < 24.2R2-S5-EVO (custom) Affected: 24.4 , < 24.4R2-S4-EVO (custom) Affected: 25.2 , < 25.2R2-S1-EVO (custom) Affected: 25.4 , < 25.4R1-S2-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-32318 (GCVE-0-2026-32318)
Vulnerability from cvelistv5 – Published: 2026-03-20 18:27 – Updated: 2026-03-20 19:20
VLAI
EPSS
VEX
Title
Cryptomator for IOS: Tampered vault configuration allows MITM attack on Hub API
Summary
Cryptomator for IOS offers multi-platform transparent client-side encryption for files in the cloud. Prior to version 2.8.3, an integrity check vulnerability allows an attacker tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 2.8.3.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 19:20 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cryptomator/ios/security/advis… | x_refsource_CONFIRM |
| https://github.com/cryptomator/ios/pull/444 | x_refsource_MISC |
| https://github.com/cryptomator/ios/commit/98c3128… | x_refsource_MISC |
| https://github.com/cryptomator/ios/releases/tag/2.8.3 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cryptomator | ios |
Affected:
< 2.8.3
|
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CVE-2026-32317 (GCVE-0-2026-32317)
Vulnerability from cvelistv5 – Published: 2026-03-20 18:29 – Updated: 2026-03-20 18:55
VLAI
EPSS
VEX
Title
Cryptomator for Android: Tampered vault configuration allows MITM attack on Hub API
Summary
Cryptomator for Android offers multi-platform transparent client-side encryption for files in the cloud. Prior to version 1.12.3, an integrity check vulnerability allows an attacker tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 1.12.3.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 18:55 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cryptomator/android/security/a… | x_refsource_CONFIRM |
| https://github.com/cryptomator/android/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cryptomator | android |
Affected:
< 1.12.3
|
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CVE-2026-32303 (GCVE-0-2026-32303)
Vulnerability from cvelistv5 – Published: 2026-03-20 17:57 – Updated: 2026-03-23 21:41
VLAI
EPSS
VEX
Title
Cryptomator: Tampered vault configuration allows MITM attack on Hub API
Summary
Cryptomator encrypts data being stored on cloud infrastructure. Prior to version 1.19.1, an integrity check vulnerability allows an attacker to tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 1.19.1.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 20:52 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cryptomator/cryptomator/securi… | x_refsource_CONFIRM |
| https://github.com/cryptomator/cryptomator/pull/4179 | x_refsource_MISC |
| https://github.com/cryptomator/cryptomator/commit… | x_refsource_MISC |
| https://github.com/cryptomator/cryptomator/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cryptomator | cryptomator |
Affected:
< 1.19.1
|
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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-2026-13608 (GCVE-0-2026-13608)
Vulnerability from cvelistv5 – Published: 2026-09-06 17:47 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
OpenLDAP SASL authentication bypass
Summary
A flaw in the libcurl SASL negotiation for LDAP authentication allows an
incomplete handshake sequence to be misinterpreted as a successful
cryptographic verification. An attacker executing a Man-in-the-Middle (MITM)
attack can inject a premature or shortcut response that bypasses complete peer
validation.
Severity
7.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:39 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
7.82.0 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.20.1 (semver) Affected: 8.21.0 , < 8.22.0 (semver) |
|
| curl | curl |
Affected:
eeca818b1e8d1e61c2d4d833aed56ce4c510a9d4 , < ea71c3b6b60e563651ea8596a975aef0c8199519
(git)
|
|
| curl | curl |
Affected:
8.21.0
Affected: 8.20.0 Affected: 8.19.0 Affected: 8.18.0 Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 Affected: 8.12.1 Affected: 8.12.0 Affected: 8.11.1 Affected: 8.11.0 Affected: 8.10.1 Affected: 8.10.0 Affected: 8.9.1 Affected: 8.9.0 Affected: 8.8.0 Affected: 8.7.1 Affected: 8.7.0 Affected: 8.6.0 Affected: 8.5.0 Affected: 8.4.0 Affected: 8.3.0 Affected: 8.2.1 Affected: 8.2.0 Affected: 8.1.2 Affected: 8.1.1 Affected: 8.1.0 Affected: 8.0.1 Affected: 8.0.0 Affected: 7.88.1 Affected: 7.88.0 Affected: 7.87.0 Affected: 7.86.0 Affected: 7.85.0 Affected: 7.84.0 Affected: 7.83.1 Affected: 7.83.0 Affected: 7.82.0 |
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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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"providerMetadata": {
"dateUpdated": "2026-06-18T14:56:02.329Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"platforms": [
"MacOS",
"Linux",
"Windows"
],
"product": "Docker Sandboxes",
"vendor": "Docker",
"versions": [
{
"lessThan": "0.33.0",
"status": "affected",
"version": "0.14.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "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."
}
],
"value": "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."
}
],
"impacts": [
{
"capecId": "CAPEC-554",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-554 Functionality Bypass"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-923",
"description": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-665",
"description": "CWE-665: Improper Initialization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T13:33:36.104Z",
"orgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e",
"shortName": "Docker"
},
"references": [
{
"tags": [
"product"
],
"url": "https://docs.docker.com/ai/sandboxes/"
},
{
"tags": [
"release-notes"
],
"url": "https://github.com/docker/sbx-releases/releases/tag/v0.33.0"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Docker Sandboxes ICMP egress restriction bypass after daemon restart"
}
},
"cveMetadata": {
"assignerOrgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e",
"assignerShortName": "Docker",
"cveId": "CVE-2026-12539",
"datePublished": "2026-06-18T13:51:13.588Z",
"dateReserved": "2026-06-17T15:31:11.749Z",
"dateUpdated": "2026-08-13T13:33:36.104Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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.