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CVE-2026-112103— f3-factory fatfree-core HTTP Client web.php _curl certificate validation

Quick assessment

Affected
f3-factory fatfree-core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 f3-factory fatfree-core（版本 3.9.2 及以下）中发现了一个漏洞。该漏洞影响组件 HTTP Client 中文件 web.php 的 函数，导致证书验证不当。攻击者可从远程发起此类攻击。此类攻击实施难度较高，利用难度较大。升级至版本 3.9.3 可解决此问题，相关补丁提交哈希为 a2c755c8dc9ad0eb7d5fd261b09aff90f649433c。建议立即升级受影响的组件。厂商已在早期被联系，并以高度专业的态度迅速发布了修复版本。

CVSS 3.7 · Low

Affected Version Matrix 4

VendorProduct Version RangeStatus
f3-factory fatfree-core 3.9.0 affected
3.9.1 affected
3.9.2 affected
3.9.3 unaffected
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I. Basic Information for CVE-2026-112103

Vulnerability Information
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Vulnerability Title
f3-factory fatfree-core HTTP Client web.php _curl certificate validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
f3-factory fatfree-core 3.9.0 cpe:2.3:a:f3-factory:fatfree-core:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112103

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III. Intelligence Information for CVE-2026-112103

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Patches & Fixes for CVE-2026-112103 (1)

Proof of Concept for CVE-2026-112103 (2)

IV. Related Vulnerabilities

Same weakness: CWE-295

V. Comments for CVE-2026-112103

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