CVE-2026-109166 lamp-cloud through 5.10.1 IDOR via /anyone/file/findUrlById
Authenticated attackers can retrieve storage URLs for other users' files by exploiting an insecure direct object reference in the file controller.
- 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-2026-109166?
CVE-2026-109166 is a high-severity vulnerability in dromara lamp-cloud, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
lamp-cloud through 5.10.1 contains an insecure direct object reference vulnerability that allows authenticated users to obtain storage URLs for other users' files by supplying arbitrary file ids. Attackers can send another user's file ids to the findUrlById handler of FileAnyoneController, which never checks ownership, to retrieve access URLs and read uploaded attachments.
Weakness: CWE-639
Which versions are affected by CVE-2026-109166?
How do I fix CVE-2026-109166?
No fix has been published for CVE-2026-109166 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109166 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109166 exists.
Sources
Also known as GHSA-xv2w-mrmf-rf3c.