CVE-2026-4587— HybridAuth SSL Curl.php certificate validation
Quick assessment
Affected
n/a HybridAuth
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.
Hybridauth是Hybridauth开源的一个基于Web 的认证和授权软件。 Hybridauth 3.12.2及之前版本存在信任管理问题漏洞，该漏洞源于对组件SSL Handler中文件src/HttpClient/Curl.php的参数curlOptions的错误操作，可能导致证书验证不当。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-4587
Vulnerability Information
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Vulnerability Title
HybridAuth SSL Curl.php certificate validation
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in HybridAuth up to 3.12.2. This issue affects some unknown processing of the file src/HttpClient/Curl.php of the component SSL Handler. The manipulation of the argument curlOptions results in improper certificate validation. The attack can be launched remotely. This attack is characterized by high complexity. The exploitability is assessed as difficult. The project was informed of the problem early through an issue report but has not responded yet.
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
Vulnerability Title
Hybridauth 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hybridauth是Hybridauth开源的一个基于Web 的认证和授权软件。 Hybridauth 3.12.2及之前版本存在信任管理问题漏洞，该漏洞源于对组件SSL Handler中文件src/HttpClient/Curl.php的参数curlOptions的错误操作，可能导致证书验证不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | HybridAuth | 3.12.0 | - |
|
II. Public POCs for CVE-2026-4587
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-4587 (3)
-
CVE-2026-4587 HybridAuth SSL Curl.php certificate validation (Issue 1444) vdb-entry technical-description
-
Submit #775463: hybridauth >2.2.0 Improper Certificate Validation (CWE-295) third-party-advisory
Vendor Pages for CVE-2026-4587 (1)
Same Patch Batch · n/a · 2026-03-23 · 20 CVEs total
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| CVE-2026-4598 | 7.5 HIGH | jsrsasign 安全漏洞 |
| CVE-2026-4602 | 7.5 HIGH | jsrsasign 安全漏洞 |
| CVE-2026-4600 | 7.4 HIGH | jsrsasign 安全漏洞 |
| CVE-2026-4603 | 5.9 MEDIUM | jsrsasign 安全漏洞 |
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| CVE-2026-30007 | XnSoft Nconvert 安全漏洞 | |
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| CVE-2026-26828 | OwnTone 安全漏洞 | |
| CVE-2024-51222 | PHPGurukul Vehicle Record Management System 安全漏洞 | |
| CVE-2024-51226 | PHPGurukul Vehicle Record Management System 安全漏洞 | |
| CVE-2024-51223 | PHPGurukul Vehicle Record Management System 安全漏洞 | |
| CVE-2024-51225 | PHPGurukul Vehicle Record Management System 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-4587
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