Vulnerability · Published May 29, 2026 · Assigned by GitHub_M
CVE-2026-45151NanoMQ: NULL Pointer Dereference
Low 2.9
In plain English
A low-severity null pointer dereference in nanomq from nanomq. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 4.0)2.9Low
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-476 · Vector: 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
References
- https://github.com/nanomq/nanomq/security/advisories/GHSA-9qhf-wgp4-p7w5 x_refsource_CONFIRM