What is CVE-2026-4587?

CVE-2026-4587 is a low-severity vulnerability in Hybridauth, classified under Improper Certificate Validation. CVSS score: 3.7/10. Published 2026-03-23.

How severe is CVE-2026-4587?

Low severity. CVSS v3 base score is 3.7 out of 10.

Auth bypass in Hybridauth

CVE-2026-4587

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…

Vulnerability class: Improper Certificate Validation

EPSS: 0.000 (7.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:R.

Affected products

N/a Hybridauth — versions 3.12.0, 3.12.1, 3.12.2

Weakness classification (CWE)

References

VDB-352423 | HybridAuth SSL Curl.php certificate validation (vdb-entry, technical-description)
VDB-352423 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #775463 | hybridauth >2.2.0 Improper Certificate Validation (CWE-295) (third-party-advisory)
github.com/hybridauth/hybridauth/issues/1444 (issue-tracking)
github.com/hybridauth/hybridauth/ (product)

Frequently asked questions

What is CVE-2026-4587?: CVE-2026-4587 is a low-severity vulnerability in Hybridauth, classified under Improper Certificate Validation. CVSS score: 3.7/10. Published 2026-03-23.
How severe is CVE-2026-4587?: Low severity. CVSS v3 base score is 3.7 out of 10.