CVE-2026-8741: Race Condition in EMQX
CVE-2026-8741 is a race condition vulnerability in EMQX versions up to 6. 2. 0 affecting the QoS 2 PUBLISH Packet Handler component. The issue arises from an unknown function in the file emqx_persistent_session_ds. erl. The vulnerability can be exploited remotely but requires high complexity and is considered difficult to exploit. The CVSS 4. 0 base score is low (2. 3). No patch or official remediation has been confirmed yet.
AI Analysis
Technical Summary
This vulnerability involves a race condition in EMQX's QoS 2 PUBLISH Packet Handler, specifically within an unspecified function in the emqx_persistent_session_ds.erl source file. It affects EMQX versions 6.0, 6.1, and 6.2.0. The race condition could potentially be triggered remotely but requires a high level of complexity and limited privileges. The vulnerability has been publicly disclosed, and the vendor was notified early. No official fix or patch information is currently available.
Potential Impact
The impact is limited due to the low CVSS score of 2.3, indicating low severity. The vulnerability requires high attack complexity and limited privileges, with no user interaction needed. There are no reports of active exploitation in the wild. The exact consequences of the race condition are not detailed, but the low severity suggests minimal impact on confidentiality, integrity, or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch has been documented, users should monitor vendor communications for updates. No specific mitigations are provided by the vendor at this time.
CVE-2026-8741: Race Condition in EMQX
Description
CVE-2026-8741 is a race condition vulnerability in EMQX versions up to 6. 2. 0 affecting the QoS 2 PUBLISH Packet Handler component. The issue arises from an unknown function in the file emqx_persistent_session_ds. erl. The vulnerability can be exploited remotely but requires high complexity and is considered difficult to exploit. The CVSS 4. 0 base score is low (2. 3). No patch or official remediation has been confirmed yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in EMQX's QoS 2 PUBLISH Packet Handler, specifically within an unspecified function in the emqx_persistent_session_ds.erl source file. It affects EMQX versions 6.0, 6.1, and 6.2.0. The race condition could potentially be triggered remotely but requires a high level of complexity and limited privileges. The vulnerability has been publicly disclosed, and the vendor was notified early. No official fix or patch information is currently available.
Potential Impact
The impact is limited due to the low CVSS score of 2.3, indicating low severity. The vulnerability requires high attack complexity and limited privileges, with no user interaction needed. There are no reports of active exploitation in the wild. The exact consequences of the race condition are not detailed, but the low severity suggests minimal impact on confidentiality, integrity, or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch has been documented, users should monitor vendor communications for updates. No specific mitigations are provided by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-16T11:19:08.422Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a098522ec166c07b0b145e5
Added to database: 5/17/2026, 9:06:42 AM
Last enriched: 5/17/2026, 9:21:35 AM
Last updated: 5/17/2026, 10:12:48 AM
Views: 3
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