F&F Filipowski mH-DEVELOPER up to 3.0.29 Express bodyParser resource consumption

Summaryinfo

A vulnerability was found in F&F Filipowski mH-DEVELOPER up to 3.0.29. It has been classified as problematic. This affects an unknown function of the component Express bodyParser. Performing a manipulation results in resource consumption. This vulnerability is known as CVE-2026-82936. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in F&F Filipowski mH-DEVELOPER up to 3.0.29. It has been classified as problematic. This affects an unknown code block of the component Express bodyParser. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

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

The advisory is shared at cert.pl. This vulnerability is uniquely identified as CVE-2026-82936 since 08/31/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 3.0.30 eliminates this vulnerability.

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Productinfo

Vendor

• F&F Filipowski

Name

• mH-DEVELOPER

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18
• 3.0.19
• 3.0.20
• 3.0.21
• 3.0.22
• 3.0.23
• 3.0.24
• 3.0.25
• 3.0.26
• 3.0.27
• 3.0.28
• 3.0.29

CPE 2.3info

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CPE 2.2info

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