LowDRUPAL-CORE-2026-008BIT-drupal-2026-55807CVE-2026-55807

DRUPAL-CORE-2026-008 in drupal/core

Published 17 Jun 2026 · Updated 10 Sept 2026

Affected package

drupal/coreComposer
Affected
<10.5.12 · >=10.6.0 <10.6.11 · >=11.2.0 <11.2.14 · >=11.3.0 <11.3.12 · >=11.0.0 <11.1.0 · >=11.1.0 <11.2.0
Fixed in
10.5.12, 10.6.11, 11.1.0, 11.2.0, 11.2.14, 11.3.12
Update to the fixed version for your release line, for example:composer require drupal/core:^11.3.12

Details

The Media module comes with support for oEmbed. The oEmbed specification contains two discovery mechanisms, via providers.json and via URL discovery.

The URL discovery code could be leveraged to trick Drupal into making server-side requests to any URL.

Is DRUPAL-CORE-2026-008 in any of your client repos?

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.