Drupal Release: 9.2.6

TL;DR

Drupal 9.2.6 is a critical security release addressing five security vulnerabilities (SA-CORE-2021-006 through SA-CORE-2021-010). This release contains no new features or bug fixes outside of these security patches. It's essential for all Drupal 9.2.x users to update immediately to protect their sites from potential security exploits.

Highlight of the Release

• Addresses five critical security vulnerabilities (SA-CORE-2021-006 through SA-CORE-2021-010)
• Security-only release with no new features or non-security bug fixes
• Recommended for immediate installation for all Drupal 9.2.x sites

Migration Guide

No migration is required for this update. This is a standard security update that follows the same update process as other minor version updates in Drupal 9.2.x.

To update:

1. Back up your database and site files
2. Update Drupal core using Composer: composer update drupal/core --with-dependencies
3. Run database updates: drush updatedb or visit /update.php in your browser
4. Clear caches: drush cache:rebuild or clear caches through the admin interface

Upgrade Recommendations

Immediate Update Strongly Recommended

This update addresses multiple security vulnerabilities and should be applied immediately to all Drupal 9.2.x sites. The security team considers these fixes critical.

If you are running Drupal 9.2.5 or earlier, you should update to Drupal 9.2.6 as soon as possible. Sites that cannot update immediately should consider taking their sites offline until they can complete the update process.

For sites on earlier versions of Drupal (9.1.x, 9.0.x, or 8.9.x), equivalent security updates have likely been released for those versions as well, and you should update to the latest version in your branch.

Bug Fixes

This release does not contain any non-security bug fixes. It is focused exclusively on addressing security vulnerabilities.

New Features

This is a security-only release. No new features have been added in Drupal 9.2.6.

Security Updates

This release addresses five security advisories:

SA-CORE-2021-006

A security vulnerability that required patching by multiple contributors including azinck, seanB, effulgentsia, marcoscano, larowlan, phenaproxima, xjm, mcdruid, drumm, and briantschu.

SA-CORE-2021-007

A security vulnerability addressed by samuel.mortenson, Wim Leers, greggles, xjm, larowlan, vijaycs85, Heine, effulgentsia, phenaproxima, mcdruid, and nod_.

SA-CORE-2021-008

A security vulnerability fixed by klausi, xjm, larowlan, alexpott, samuel.mortenson, mcdruid, and kim.pepper.

SA-CORE-2021-009

A security vulnerability patched by illeace, Wim Leers, xjm, effulgentsia, larowlan, pandaski, vijaycs85, phenaproxima, and mcdruid.

SA-CORE-2021-010

A security vulnerability addressed by bradjones1, xjm, bbrala, gabesullice, Wim Leers, and e0ipso.

The Drupal security team has not published detailed information about these vulnerabilities to prevent exploitation. For more information, please refer to the official security advisories on Drupal.org.

Performance Improvements

No specific performance improvements are included in this security-focused release.

Impact Summary

This security release addresses five potentially critical vulnerabilities in Drupal core. While specific details about the vulnerabilities are not disclosed to prevent exploitation, the involvement of numerous core contributors in each fix suggests these were significant security issues requiring immediate attention.

The release contains 279 additions and 92 deletions across 23 files, indicating targeted changes focused on security fixes rather than feature development or general bug fixes.

All Drupal 9.2.x sites should be updated immediately to mitigate potential security risks. Organizations should prioritize this update and consider it a critical maintenance task to protect their Drupal installations from possible exploitation.