CVE-2026-8741— EMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-8741
Vulnerability Information
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Vulnerability Title
EMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | EMQX | 6.0 | cpe:2.3:a:emqx:emqx:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-8741
| # | POC Description | Source Link | Shenlong Link |
|---|
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News · 1
- https://vuldb.com/submit/809931third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-8741
Same Patch Batch · n/a · 2026-05-17 · 11 CVEs total
| CVE-2026-8747 | 6.3 MEDIUM | Z-BlogPHP Commend Approval c_system_event.php CheckComment improper authorization |
| CVE-2026-8743 | 6.3 MEDIUM | Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization |
| CVE-2026-8724 | 4.7 MEDIUM | Dataease Data Dashboard SqlparserUtils.java SqlparserUtils.transFilter sql injection |
| CVE-2026-8746 | 4.3 MEDIUM | Open5GS NRF nghttp2-server.c discover_handler use after free |
| CVE-2026-8745 | 4.3 MEDIUM | Open5GS AUSF nausf-handler.c ogs_timer_add denial of service |
| CVE-2026-8744 | 4.3 MEDIUM | Open5GS NRF context.c ogs_sbi_nf_service_add denial of service |
| CVE-2026-8731 | 4.3 MEDIUM | Open5GS NRF client.c ogs_sbi_client_add denial of service |
| CVE-2026-8730 | 4.3 MEDIUM | Open5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service |
| CVE-2026-8729 | 4.3 MEDIUM | Open5GS NRF message.c denial of service |
| CVE-2026-8728 | 4.3 MEDIUM | Open5GS NRF conv.c ogs_sbi_discovery_option_parse_plmn_list denial of service |
IV. Related Vulnerabilities
Same product: EMQX
Same vendor: n/a
- CVE-2026-8747
Z-BlogPHP Commend Approval c_system_event.php CheckComment i - CVE-2026-8746
Open5GS NRF nghttp2-server.c discover_handler use after free - CVE-2026-8745
Open5GS AUSF nausf-handler.c ogs_timer_add denial of service - CVE-2026-8744
Open5GS NRF context.c ogs_sbi_nf_service_add denial of servi - CVE-2026-8743
Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id impr
V. Comments for CVE-2026-8741
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