CVE-2026-55806: Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007

Published Jul 10, 2026
·
Updated

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..

Affected Software

5 affected components
Drupal Drupal Core>=0.0.0<=10.5.12, >=10.6.0<=10.6.11, >=11.2.0<=11.2.14, >=11.3.0<=11.3.12, >=0.0.0<11.1.*, >=0.0.0<11.0.*
Drupal Drupal<10.5.12
Drupal Drupal>=10.6.0<10.6.11
Drupal Drupal>=11.0.0<11.2.14
Drupal Drupal>=11.3.0<11.3.12

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Drupal core to a version that resolves this vulnerability.

    Fixed in 10.5.12Patch SA-CORE-2026-007
  2. Upgrade

    Upgrade Drupal core to a version that resolves this vulnerability.

    Fixed in 10.6.11Patch SA-CORE-2026-007
  3. Upgrade

    Upgrade Drupal core to a version that resolves this vulnerability.

    Fixed in 11.2.14Patch SA-CORE-2026-007
  4. Upgrade

    Upgrade Drupal core to a version that resolves this vulnerability.

    Fixed in 11.3.12Patch SA-CORE-2026-007
  5. Upgrade

    Upgrade Drupal core to a version that resolves this vulnerability.

    Patch SA-CORE-2026-007

Event History

Jul 10, 2026
CVE Published
via MITRE·09:46 PM
Data Sourced
via MITRE·09:46 PM
DescriptionWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-55806?

CVE-2026-55806 has a risk level classified as less critical.

2

How do I fix CVE-2026-55806?

To fix CVE-2026-55806, update Drupal core to the latest version that addresses this vulnerability.

3

Which Drupal versions are affected by CVE-2026-55806?

CVE-2026-55806 affects Drupal core versions from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, and earlier versions including 11.0.* and 11.1.*.

4

What type of vulnerability is CVE-2026-55806?

CVE-2026-55806 is classified as an open redirect vulnerability that allows for cache poisoning and content spoofing.

5

Is CVE-2026-55806 easy to exploit?

While less critical, CVE-2026-55806 can still be exploited if an attacker is able to trick users into encountering the open redirect.

Company

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