Vulnerability · Published Sep 28, 2026 · Assigned by CERT-PL

CVE-2026-82936Denial of Service in mH-DEVELOPER

Medium 5.9

In plain English

A medium-severity resource allocation without limits in mH-DEVELOPER from F&F Filipowski. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 4.0)5.9Medium

Exploit odds (30 days)0.2%top 93.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

mH-DEVELOPER smart home module is vulnerable to Denial of Service due to uncontrolled resource consumption. The Express bodyParser is configured with a 250 MB limit for JSON and URL-encoded request bodies. An authenticated attacker on the LAN can send large request bodies that exhausts buffers in RAM, causing out-of-memory conditions and crashing the fh-node process, resulting in denial of service. The successful attack depends on the current memory usage of the device which is not under full control of the attacker. Critically, due to CVE-2026-82930 all endpoints can be queried unauthenticated, so any user on LAN can perform this attack. This issue was fixed in version 3.0.30

Affected products (as reported)

Vendor	Product	Versions
F&F Filipowski	mH-DEVELOPER	0 – before 3.0.30

Weakness: CWE-770 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

https://cert.pl/posts/2026/09/CVE-2026-82928/ third-party-advisory
https://www.fif.com.pl/pl/strona-glowna/1367-mh-developer.html product