CVE-2026-8741 (GCVE-0-2026-8741)
Vulnerability from cvelistv5 – Published: 2026-05-17 08:15 – Updated: 2026-05-18 17:53
VLAI
EPSS
VEX
Title
EMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition
Summary
A vulnerability has been found in EMQX up to 6.2.0. This affects an unknown function of the file apps/emqx/src/emqx_persistent_session_ds.erl of the component QoS 2 PUBLISH Packet Handler. Such manipulation leads to race condition. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is reported as difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 16:43 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364329 | vdb-entry |
| https://vuldb.com/vuln/364329/cti | signaturepermissions-required |
| https://vuldb.com/submit/809931 | third-party-advisory |
| https://github.com/Pathfind-tama/Report_EMQX_MQTT | related |
| https://github.com/Pathfind-tama/Report_EMQX_MQTT… | exploit |
Impacted products
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| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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