Vulnerability · Published Mar 6, 2026 · Assigned by GitHub_M

CVE-2026-30231Flare: Private File IDOR via raw/direct endpoints

Medium 6.0

In plain English

A medium-severity authorization bypass via user-controlled key in Flare from FlintSH. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 4.0)6.0Medium

Exploit odds (30 days)0.3%top 75.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
FlintSH	Flare	< 1.7.2

Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/FlintSH/Flare/security/advisories/GHSA-gwqr-xf5c-5569 x_refsource_CONFIRM