CVE-2026-82348 Apache Roller: Cross-weblog resource tampering via unscoped authoring lookups
Authenticated users can read, modify, or delete resources from other weblogs due to unscoped identifier lookups, compromising multi-user isolation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82348?
CVE-2026-82348 is a high-severity missing authorization vulnerability in Apache Roller, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Authorization Bypass Through User-Controlled Key in Apache Roller 6.1.5 allows an authenticated user with authoring rights on one weblog to read, modify, or delete resources belonging to another weblog through unscoped identifier-based lookups. This affects multi-user installations where users are intended to be isolated between weblogs; no optional feature or non-default configuration is required. A user with administrator rights on their weblog can also overwrite another weblog's Velocity template, whose content is evaluated when the victim weblog renders. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which scopes authoring resource lookups to the acting weblog.
Weakness: CWE-639
Which versions are affected by CVE-2026-82348?
How do I fix CVE-2026-82348?
No fix has been published for CVE-2026-82348 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-82348 being exploited?
There is no known exploitation of CVE-2026-82348 in the wild and no public exploit code.
Sources
Also known as GHSA-gxxm-hxjp-gc3f.