Description
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In 0.24.8 and earlier, quic_stream_recv can dereference a null substream pointer when a substream is in reopen state. The code finishes the AIO with error but does not return before locking c->mtx.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/nanomq/nanomq/security/advisories/GHSA-9qhf-wgp4-p7w5
Scores
CVSS v4
2.9
EPSS
0.0023
EPSS Percentile
13.2%
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (1)
nanomq/nanomq
<= 0.24.8
Published
May 29, 2026
Tracked Since
May 30, 2026