CVE-2026-30231 Flare: Private File IDOR via raw/direct endpoints
Authenticated non-owners can access private files via raw endpoints, allowing unauthorized data disclosure in Flare file sharing platform.
- 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-2026-30231?
CVE-2026-30231 is a medium-severity missing authorization vulnerability in FlintSH Flare, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to version 1.7.2, the raw and direct file routes only block unauthenticated users from accessing private files. Any authenticated, non‑owner user who knows the file URL can retrieve the content, which is inconsistent with stricter checks used by other endpoints. This issue has been patched in version 1.7.2.
Weakness: CWE-639
Which versions are affected by CVE-2026-30231?
It affects 1 product.
Products include Flintsh Flare.
How do I fix CVE-2026-30231?
No fix has been published for CVE-2026-30231 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-2026-30231 being exploited?
There is no known exploitation of CVE-2026-30231 in the wild and no public exploit code.
Other vulnerabilities in FlintSH Flare
Sources
Also known as GHSA-gwqr-xf5c-5569.