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 | CPE status | |
|---|---|---|---|---|
| moquette-io | moquette |
Affected:
< 0.18.1
|
guessed |
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