CVE-2026-30230

Flare: Password‑Protected Thumbnail Bypass

State: Published
Severity: 8.2 High
Published: Mar 6, 2026
Updated: Mar 9, 2026
Reserved: Mar 4, 2026

Description

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to version 1.7.2, the thumbnail endpoint does not validate the password for password‑protected files. It checks ownership/admin for private files but skips password verification, allowing thumbnail access without the password. This issue has been patched in version 1.7.2.

Scores

CVSS	Score	Vector	Source
4.0	8.2 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
FlareFlintSH	< 1.7.2Affected

References

https://github.com/FlintSH/Flare/security/advisories/GHSA-3x7v-x3r6-mjh7

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