Improper input validation in Boazsegev Facil.io
CVE-2026-16632
A flaw has been found in boazsegev facil.io up to 0.7.4. Affected is the function websocket_on_protocol_error in the library lib/facil/http/parsers/websocket_parser.h of the component WebSocket Frame Parser. This manipulation of the argument on_message causes improper input validation. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.005 (42.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Boazsegev Facil.io — versions 0.7.0, 0.7.1, 0.7.2
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-16632?
- CVE-2026-16632 is a high-severity vulnerability in Boazsegev Facil.io, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2026-07-23.
- How severe is CVE-2026-16632?
- High severity. CVSS v3 base score is 7.3 out of 10.