CVE-2026-16653 boazsegev facil.io Public Folder http.c http_sendfile2 path traversal
Attackers can exploit a path traversal flaw in facil.io's public folder handler to read arbitrary files remotely.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16653?
CVE-2026-16653 is a medium-severity path traversal vulnerability in boazsegev facil.io, published on 23 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in boazsegev facil.io up to 0.7.58. This affects the function http_sendfile2 of the file lib/facil/http/http.c of the component Public Folder Handler. Performing a manipulation results in path traversal. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-22
Which versions are affected by CVE-2026-16653?
How do I fix CVE-2026-16653?
No fix has been published for CVE-2026-16653 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-16653 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16653 exists.
Sources
Also known as GHSA-fh8x-qh3j-vhfv.