CVE-2026-82394 Sulu: Fix authorization bypass when creating preview links
Authenticated users can generate public preview links for restricted content, allowing unauthorized data access without proper permission checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-82394?
CVE-2026-82394 is a medium-severity missing authorization vulnerability in sulu, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the preview-link endpoint and src/Sulu/Bundle/PreviewBundle/Application/Manager/PreviewLinkManager.php do not enforce VIEW permission for the target resource in PreviewLinkManager::generate() or PreviewLinkManager::revoke(). An authenticated administration user who knows a target resource identifier can create or revoke a preview link for any page, article, or snippet, including content in a webspace or area the user cannot view. A generated preview URL is public and resolves content by an opaque token, allowing the user or anyone receiving the link to read restricted content without authentication. This issue is fixed in versions 2.6.25 and 3.0.8.
Which versions are affected by CVE-2026-82394?
4 open source packages ship an affected version, including sulu/sulu.
| Package | Affected | Fixed in |
|---|---|---|
sulu/sulu Packagist | All versions | 2.6.25 |
sulu/sulu Packagist | All versions | 2.6.25 |
sulu/sulu Packagist | From 3.0.0-alpha1 | 3.0.8 |
sulu/sulu Packagist | From 3.0.0-alpha1 | 3.0.8 |
How do I fix CVE-2026-82394?
Upgrade sulu/sulu to a fixed version for your release line: 2.6.25 or 3.0.8.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-82394 being exploited?
There is no known exploitation of CVE-2026-82394 in the wild and no public exploit code.
Sources
Also known as GHSA-65cv-w493-7vhq.