boazsegev facil.io up to 0.7.6 Multipart Body Parser http_mime_parse denial of service

Summaryinfo

A vulnerability described as problematic has been identified in boazsegev facil.io up to 0.7.6. Affected is the function http_mime_parse of the component Multipart Body Parser. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-66730. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in boazsegev facil.io up to 0.7.6. It has been classified as problematic. Affected is the function http_mime_parse of the component Multipart Body Parser. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

facil.io 0.6.0 through 0.7.6 contains a denial-of-service vulnerability in the multipart body parser that allows an unauthenticated remote attacker to permanently freeze worker processes at 100% CPU by sending a multipart/form-data request with a partial closing boundary. The missing progress guard in the parser loop causes http_mime_parse to return 0 bytes consumed without setting done or error flags, causing the calling loop to re-invoke the parser on the same buffer indefinitely, exhausting all workers and permanently disabling the server until manually restarted.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-66730 since 07/27/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• boazsegev

Name

• facil.io

Version

• 0.7.0
• 0.7.1
• 0.7.2
• 0.7.3
• 0.7.4
• 0.7.5
• 0.7.6

CPE 2.3info

• 🔒
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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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