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DRUPAL-CONTRIB-2026-281unknown

The CAPTCHA module places a configurable challenge on forms to block automated submissions.

Impact

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.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

drupal/captcha Packagist:https://packages.drupal.org/8
Affected range Recorded fix
Earlier releases before 1.18.0Ecosystem versions1.18.0
From 2.0.0 before 2.0.11Ecosystem versions2.0.11

Version evidence: OSV · DRUPAL-CONTRIB-2026-281

View original version evidence (0 explicit versions)

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Drupal · drupal

CAPTCHA

2 ranges
drupal version evidence

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affected

0.0.0 → before 1.18.0

semver versions

2.0.0 → before 2.0.11

semver versions

unaffected

unknown

Other versions: unknown

Original source description

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 / CVE-2026-3214), which closed one replay path but left this one open.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118582

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Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-288 ↗

CWE-288 Authentication Bypass Using an Alternate Path or Channel

drupal

Related →
Contributing organizations · 1
drupal

Assigning organization

2026-10-30

What changed

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References

1 sources
www.drupal.org/sa-contrib-2026-281
Security advisorydrupal