Vulnerability advisory

DRUPAL-CORE-2026-006

Published Updated OSV record ↗

Also known as BIT-drupal-2026-55804CVE-2026-55804

Severity

Severity not reported.

Affected versions

AffectedFixed in
All versions before 10.5.1210.5.12Advisories →
10.6.0 to before 10.6.1110.6.11Advisories →
11.2.0 to before 11.2.1411.2.14Advisories →
11.3.0 to before 11.3.1211.3.12Advisories →
11.0.0 to before 11.1.011.1.0Advisories →
11.1.0 to before 11.2.011.2.0Advisories →
Also listed as affected (477)

Description

Drupal core contains a chain of methods that could be exploitable when an insecure deserialization vulnerability exists on the site. This so-called "gadget chain" presents no direct threat, but is a vector that can be used to achieve remote code execution or SQL injection if the application deserializes untrusted data due to another vulnerability.

This issue is not directly exploitable.

This issue is mitigated by the fact that in order for it to be exploitable, a separate vulnerability must be present to allow an attacker to pass unsafe input to unserialize().

References

  • Codex
  • Claude Code
  • VS Code
  • GitHub Copilot
  • Cursor
  • Cline
  • Windsurf
  • Google Anti-gravity
  • OpenCode
  • Pi
  • Gemini CLI
  • Hermes Agent
  • Zed
  • Junie
  • Qwen Code
  • Kiro
  • Kilo Code
  • Factory Droid

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  2. Asks whether to set up GitHits at the user or project level
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