Description
The virtual filesystem in ownCloud Server before 6.0.9, 7.0.x before 7.0.7, and 8.0.x before 8.0.5 does not consider that NULL is a valid getPath return value, which allows remote authenticated users to bypass intended access restrictions and gain access to users files via a sharing link to a file with a deleted parent folder.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | owncloud | 7.0.4+dfsg-4~deb8u3 | DSA-3373-1 |
Advisories 1
- DSA-3373-1 owncloud - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-3373 vendor-advisory
- https://owncloud.org/security/advisory/?id=oc-sa-2015-011