(CVE-2026-118582)
Vulnerability from drupal – Published: 2026-10-28 17:27 – Updated: 2026-10-28 17:36 – Source websiteThe 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.
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"affected_versions": "\u003c1.18.0 || \u003e=2.0.0 \u003c2.0.11"
},
"package": {
"ecosystem": "Packagist:https://packages.drupal.org/8",
"name": "drupal/captcha"
},
"ranges": [
{
"database_specific": {
"constraint": "\u003c1.18.0"
},
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.0"
}
],
"type": "ECOSYSTEM"
},
{
"database_specific": {
"constraint": "\u003e=2.0.0 \u003c2.0.11"
},
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.11"
}
],
"type": "ECOSYSTEM"
}
],
"severity": []
}
],
"aliases": [
"CVE-2026-118582"
],
"credits": [
{
"contact": [
"https://www.drupal.org/u/neclimdul"
],
"name": "James Gilliland (neclimdul)"
},
{
"contact": [
"https://www.drupal.org/u/rodrigo-cabo"
],
"name": "Rodrigo Cabo (rodrigo-cabo)"
}
],
"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.\n\nThe 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.\n\nThis 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.",
"id": "DRUPAL-CONTRIB-2026-281",
"modified": "2026-10-28T17:36:20.000Z",
"published": "2026-10-28T17:27:47.000Z",
"references": [
{
"type": "WEB",
"url": "https://www.drupal.org/sa-contrib-2026-281"
}
],
"schema_version": "1.7.0"
}
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