DRUPAL-CONTRIB-2026-281

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    DRUPAL-CONTRIB-2026-281

    Published: 28 Oct 2026Last Modified: 28 Oct 2026

    Summary:

    Details: The CAPTCHA module places a configurable challenge on forms to block automated submissions. To skip the challenge on later steps of the same multi-step form, the module remembers that a CAPTCHA session has been solved. The module does not fully invalidate a solved CAPTCHA session. As a result, a protected form that was already submitted once can be submitted again without solving a new CAPTCHA. This weakens the protection the module provides against automated submissions such as spam registrations, comment spam, and login brute-forcing. This is a follow-up to the earlier CAPTCHA replay fix ([SA-CONTRIB-2026-015](https://www.drupal.org/sa-contrib-2026-015) / CVE-2026-3214), which closed one replay path but left this one open.

    References: https://www.drupal.org/sa-contrib-2026-281

    Affected packages

    Package

    Name: drupal/captcha

    Purl: pkg:composer/drupal/captcha?repository_url=https:%2F%2Fpackages.drupal.org%2F8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.18.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DRUPAL-CONTRIB-2026-281 | CVE-DB