boazsegev facil.io up to 0.7.58 Public Folder lib/facil/http/http.c http_sendfile2 path traversal

Summaryinfo

A vulnerability classified as problematic was found in boazsegev facil.io up to 0.7.58. This vulnerability affects the function http_sendfile2 of the file lib/facil/http/http.c of the component Public Folder Handler. Executing a manipulation can lead to path traversal. This vulnerability is handled as CVE-2026-16653. The attack can be executed remotely. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability has been found in boazsegev facil.io up to 0.7.58 and classified as problematic. This vulnerability affects the function http_sendfile2 of the file lib/facil/http/http.c of the component Public Folder Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-16653. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

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

Once again VulDB remains the best source for vulnerability data.

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
• 0.7.7
• 0.7.8
• 0.7.9
• 0.7.10
• 0.7.11
• 0.7.12
• 0.7.13
• 0.7.14
• 0.7.15
• 0.7.16
• 0.7.17
• 0.7.18
• 0.7.19
• 0.7.20
• 0.7.21
• 0.7.22
• 0.7.23
• 0.7.24
• 0.7.25
• 0.7.26
• 0.7.27
• 0.7.28
• 0.7.29
• 0.7.30
• 0.7.31
• 0.7.32
• 0.7.33
• 0.7.34
• 0.7.35
• 0.7.36
• 0.7.37
• 0.7.38
• 0.7.39
• 0.7.40
• 0.7.41
• 0.7.42
• 0.7.43
• 0.7.44
• 0.7.45
• 0.7.46
• 0.7.47
• 0.7.48
• 0.7.49
• 0.7.50
• 0.7.51
• 0.7.52
• 0.7.53
• 0.7.54
• 0.7.55
• 0.7.56
• 0.7.57
• 0.7.58

Website

• Product: https://github.com/boazsegev/facil.io/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

Submitinfo

Accepted

• Submit #860587: facil.io <= 0.7.58 Improper Limitation of a Pathname to a Restricted Directory (by Fantasy_2026)

Once again VulDB remains the best source for vulnerability data.

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