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18 vulnerabilities by moquette-io
CVE-2026-95848 (GCVE-0-2026-95848)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 17:58
VLAI
EPSS
VEX
Title
Moquette fails open when configured authentication or authorization classes cannot load
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when a configured authenticator or authorizator class cannot be loaded, Server.initializeAuthenticator and Server.initializeAuthorizatorPolicy treat the failure as though no custom class was configured and fall back to AcceptAllAuthenticator or PermitAllAuthorizatorPolicy. A misspelled class name, missing dependency, constructor failure, or classpath problem can therefore start the broker with authentication or authorization disabled even though the operator configured those controls. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:58 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/967 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/14… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95847 (GCVE-0-2026-95847)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:50
VLAI
EPSS
VEX
Title
Moquette client IDs can cause cross-session H2 durable-queue corruption
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, H2PersistentQueue derives a session's message-map name as queue_ plus the client ID and its metadata-map name as queue_ plus the client ID plus _meta. A durable session whose client ID ends in _meta can therefore make its message map collide with another client's metadata map. The colliding sessions read and write the same H2 MVStore map with incompatible value types, which can corrupt queue head and tail data and cause message loss, misdelivery, failed queue reloads, or exposure of queued content across sessions. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:50 UTC
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/964 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/72… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95846 (GCVE-0-2026-95846)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
Moquette publishes Last-Will messages without enforcing write authorization
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:21 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/f5… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95845 (GCVE-0-2026-95845)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 19:44
VLAI
EPSS
VEX
Title
Moquette unbounded per-session message queues allow memory exhaustion
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, the broker does not enforce a maximum length for pending per-session message queues. When a fast publisher sends messages to a slow subscriber whose in-flight window is full, queued messages can accumulate without bound in memory or persistent storage. Remote clients can use this condition to exhaust broker resources and cause a denial of service. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 18:06 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/24… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95844 (GCVE-0-2026-95844)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:29
VLAI
EPSS
VEX
Title
Moquette deeply nested MQTT topics can cause stack exhaustion
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.
Severity
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/ca… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95843 (GCVE-0-2026-95843)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 17:58
VLAI
EPSS
VEX
Title
Moquette malformed shared subscriptions can crash command processing
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.subscribe parses a shared-subscription filter through SharedSubscriptionUtils.extractShareName before validating the complete $share/{shareName}/{topicFilter} structure. A remote client can send a filter such as $share/grp without a topic-filter portion, causing a StringIndexOutOfBoundsException while calculating the share name. The exception terminates command handling on the shared session event loop and can deny service to other client sessions assigned to that loop. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:57 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/962 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/af… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
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CVE-2026-95842 (GCVE-0-2026-95842)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:49
VLAI
EPSS
VEX
Title
Moquette uncaught MQTT command exceptions can terminate shared session event loops
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:48 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/957 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/86… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
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CVE-2026-85724 (GCVE-0-2026-85724)
Vulnerability from nvd – Published: 2026-09-23 16:29 – Updated: 2026-09-24 14:19
VLAI
EPSS
VEX
Title
Moquette pattern ACL wildcard injection allows cross-tenant authorization bypass
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when pattern-based ACL rules are configured, AuthorizationsCollector.canDoOperation substitutes client ID and username values directly into rules containing %c or %u and then treats the result as an MQTT topic filter. A client that uses + or # in either identity can broaden the substituted filter and gain cross-tenant read and write access. A # identity can also produce an invalid filter that triggers a NullPointerException in Topic.match and disrupts session processing. This issue is fixed in version 0.18.1.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:18 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/b4… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-85058 (GCVE-0-2026-85058)
Vulnerability from nvd – Published: 2026-09-18 17:40 – Updated: 2026-09-22 15:14
VLAI
EPSS
VEX
Title
Moquette: Missing Authorization in io.moquette:moquette-broker
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client-controlled Last Will message through publish2Subscribers without invoking the authorizator.canWrite check used by normal PUBLISH paths. When anonymous access is enabled and topic ACLs restrict writes, a remote client can set an ACL-protected topic as the Last Will Topic during CONNECT and perform an abnormal client disconnect, causing the broker to inject attacker-controlled messages into a topic for which the client lacks write permission. This issue is fixed in version 0.18.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:13 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/e2… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/f5… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95848 (GCVE-0-2026-95848)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 17:58
VLAI
EPSS
VEX
Title
Moquette fails open when configured authentication or authorization classes cannot load
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when a configured authenticator or authorizator class cannot be loaded, Server.initializeAuthenticator and Server.initializeAuthorizatorPolicy treat the failure as though no custom class was configured and fall back to AcceptAllAuthenticator or PermitAllAuthorizatorPolicy. A misspelled class name, missing dependency, constructor failure, or classpath problem can therefore start the broker with authentication or authorization disabled even though the operator configured those controls. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:58 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/967 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/14… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95847 (GCVE-0-2026-95847)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:50
VLAI
EPSS
VEX
Title
Moquette client IDs can cause cross-session H2 durable-queue corruption
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, H2PersistentQueue derives a session's message-map name as queue_ plus the client ID and its metadata-map name as queue_ plus the client ID plus _meta. A durable session whose client ID ends in _meta can therefore make its message map collide with another client's metadata map. The colliding sessions read and write the same H2 MVStore map with incompatible value types, which can corrupt queue head and tail data and cause message loss, misdelivery, failed queue reloads, or exposure of queued content across sessions. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:50 UTC
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/964 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/72… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95846 (GCVE-0-2026-95846)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
Moquette publishes Last-Will messages without enforcing write authorization
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:21 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/f5… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95845 (GCVE-0-2026-95845)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 19:44
VLAI
EPSS
VEX
Title
Moquette unbounded per-session message queues allow memory exhaustion
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, the broker does not enforce a maximum length for pending per-session message queues. When a fast publisher sends messages to a slow subscriber whose in-flight window is full, queued messages can accumulate without bound in memory or persistent storage. Remote clients can use this condition to exhaust broker resources and cause a denial of service. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 18:06 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/24… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95844 (GCVE-0-2026-95844)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:29
VLAI
EPSS
VEX
Title
Moquette deeply nested MQTT topics can cause stack exhaustion
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.
Severity
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/ca… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95843 (GCVE-0-2026-95843)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 17:58
VLAI
EPSS
VEX
Title
Moquette malformed shared subscriptions can crash command processing
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.subscribe parses a shared-subscription filter through SharedSubscriptionUtils.extractShareName before validating the complete $share/{shareName}/{topicFilter} structure. A remote client can send a filter such as $share/grp without a topic-filter portion, causing a StringIndexOutOfBoundsException while calculating the share name. The exception terminates command handling on the shared session event loop and can deny service to other client sessions assigned to that loop. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:57 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/962 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/af… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-95842 (GCVE-0-2026-95842)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:49
VLAI
EPSS
VEX
Title
Moquette uncaught MQTT command exceptions can terminate shared session event loops
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:48 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/pull/957 | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/86… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
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CVE-2026-85724 (GCVE-0-2026-85724)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-24 14:19
VLAI
EPSS
VEX
Title
Moquette pattern ACL wildcard injection allows cross-tenant authorization bypass
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when pattern-based ACL rules are configured, AuthorizationsCollector.canDoOperation substitutes client ID and username values directly into rules containing %c or %u and then treats the result as an MQTT topic filter. A client that uses + or # in either identity can broaden the substituted filter and gain cross-tenant read and write access. A # identity can also produce an invalid filter that triggers a NullPointerException in Topic.match and disrupts session processing. This issue is fixed in version 0.18.1.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:18 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/b4… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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CVE-2026-85058 (GCVE-0-2026-85058)
Vulnerability from cvelistv5 – Published: 2026-09-18 17:40 – Updated: 2026-09-22 15:14
VLAI
EPSS
VEX
Title
Moquette: Missing Authorization in io.moquette:moquette-broker
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client-controlled Last Will message through publish2Subscribers without invoking the authorizator.canWrite check used by normal PUBLISH paths. When anonymous access is enabled and topic ACLs restrict writes, a remote client can set an ACL-protected topic as the Last Will Topic during CONNECT and perform an abnormal client disconnect, causing the broker to inject attacker-controlled messages into a topic for which the client lacks write permission. This issue is fixed in version 0.18.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:13 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/moquette-io/moquette/security/… | x_refsource_CONFIRM |
| https://github.com/moquette-io/moquette/commit/e2… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/commit/f5… | x_refsource_MISC |
| https://github.com/moquette-io/moquette/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
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