CVE-2026-4587 | HybridAuth up to 3.12.2 SSL src/HttpClient/Curl.php curlOptions certificate validation (Issue 1444)

VDB-352423 · CVE-2026-4587 · ISSUE 1444 HYBRIDAUTH UP TO 3.12.2 SSL SRC/HTTPCLIENT/CURL.PHP CURLOPTIONS CERTIFICATE VALIDATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.6 $0-$5k 3.07+ Summaryinfo A vulnerability, which was classified as problematic, has been found in HybridAuth up to 3.12.2. Impacted is an unknown function of the file src/HttpClient/Curl.php of the component SSL Handler. This manipulation of the argument curlOptions causes certificate validation. This vulnerability appears as CVE-2026-4587. The attack may be initiated remotely. There is no available exploit. The project was informed of the problem early through an issue report but has not responded yet. Detailsinfo A vulnerability classified as problematic was found in HybridAuth up to 3.12.2. Affected by this vulnerability is an unknown functionality of the file src/HttpClient/Curl.php of the component SSL Handler. The manipulation of the argument curlOptions with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect integrity. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-4587. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/22/2026). The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK. The project was informed of the problem early through an issue report but has not responded yet. By approaching the search of inurl:src/HttpClient/Curl.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name HybridAuth Version 3.12.0 3.12.1 3.12.2 Website Product: https://github.com/hybridauth/hybridauth/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.7 VulDB Meta Temp Score: 3.6 VulDB Base Score: 3.7 VulDB Temp Score: 3.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Certificate validation CWE: CWE-295 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/22/2026 Advisory disclosed 03/22/2026 +0 days VulDB entry created 03/22/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: 1444 Status: Not defined CVE: CVE-2026-4587 (🔒) GCVE (CVE): GCVE-0-2026-4587 GCVE (VulDB): GCVE-100-352423 Entryinfo Created: 03/22/2026 10:45 Changes: 03/22/2026 10:45 (54) Complete: 🔍 Submitter: jstyles Cache ID: 99:F17:101 Submitinfo Accepted Submit #775463: hybridauth >2.2.0 Improper Certificate Validation (CWE-295) (by jstyles) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸