CVE-2026-55807
Drupal core - Moderately critical - Server-side request forgery - SA-CORE-2026-008
3.1
LOW
CVSS 3.1
EPSS 0.14%
Description
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.
How to fix CVE-2026-55807
To remediate CVE-2026-55807, upgrade the affected package to a fixed version below.
- —upgrade to 10.5.12 or later
- —upgrade to 10.5.12 or later
Is CVE-2026-55807 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 10.5.12, >= 10.6.0, < 10.6.11, >= 11.0.0, < 11.2.14, >= 11.3.0, < 11.3.12
- from 0, < 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
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |