Vulnerability · Published Oct 19, 2026 · Assigned by VulDB
CVE-2026-112103f3-factory fatfree-core HTTP Client web.php _curl certificate validation
Low 3.7
In plain English
A low-severity improper certificate validation in fatfree-core from f3-factory. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official description
A vulnerability has been found in f3-factory fatfree-core up to 3.9.2. This vulnerability affects the function _curl of the file web.php of the component HTTP Client. Such manipulation leads to improper certificate validation. The attack may be performed from remote. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. Upgrading to version 3.9.3 is able to resolve this issue. The name of the patch is a2c755c8dc9ad0eb7d5fd261b09aff90f649433c. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| f3-factory | fatfree-core | 3.9.03.9.13.9.2 |
Weakness: CWE-295, CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
References
- VDB-422019 | f3-factory fatfree-core HTTP Client web.php _curl certificate validation vdb-entry, technical-description
- VDB-422019 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-112103 | CVE Analysis and Report third-party-advisory
- Submit #1013092 | fatfree fatfree-core <= 3.9.2 Information Disclosure third-party-advisory
- https://github.com/f3-factory/fatfree-core/issues/412 issue-tracking
- https://github.com/f3-factory/fatfree-core/commit/a2c755c8dc9ad0eb7d5fd261b09aff90f649433c patch
- https://github.com/f3-factory/fatfree-core/releases/tag/3.9.3 patch
- https://github.com/f3-factory/fatfree-core/ product