SB2026103055 - Authentication bypass using an alternate path or channel in CAPTCHA module for Drupal
Published: October 30, 2026
Security Bulletin ID
SB2026103055
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2026-118582)
CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not fully invalidate a solved CAPTCHA session. A remote attacker can bypass the CAPTCHA on subsequent submissions.
Remediation
Install update from vendor's website.