NGINX Plus ngx_stream_mqtt_filter_module vulnerability
Published Jul 15, 2026
6.3
MEDIUMCVSS 4.0
EPSS 0.45%
Description
When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers can send requests with conditions beyond the attacker's control to cause a heap buffer over-read in the NGINX worker process, leading to a restart.
Impact: This vulnerability may allow remote unauthenticated attackers to have limited control to restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected products
-
Affected
- ≥ 37.0.0.1, < 37.0.3.1
- R33
- ≥ R36, < R36 P7
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| F5 | NGINX Plus | unknown | Affected
|
- ≥ 1.3.0 · ≤ 1.6.2
- ≥ 2.0.0 · < 2.6.7
- ≥ 3.5.0 · ≤ 3.7.2
- ≥ 5.0.0 · < 5.5.3
- ≥ 2026-lts-r1 · < 2026-lts-r4
- 4.0.0
- 4.0.1
- ≥ 37.0.0.1 · < 37.0.3.1
- ≥ r33 · < r36
- r36
- r36
- r36
- r36
- r36
- r36
- r36
- ≥ 4.11.0 · ≤ 4.16.0
- ≥ 5.2.0 · ≤ 5.8.0
- ≥ 5.9.0 · < 5.13.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44685 Advisory
- https://my.f5.com/manage/s/article/K000162101 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44685 | Advisory | |
| https://my.f5.com/manage/s/article/K000162101 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
Red Hat
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GitHub
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