What is the CVSS score of CVE-2026-30942?

CVE-2026-30942 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Flare are affected by CVE-2026-30942?

Organizations using Flare should be aware of notable risk from CVE-2026-30942, a path traversal vulnerability rated CVSS 6.5. This could allow unauthorized file access.

How to fix or mitigate CVE-2026-30942?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.

Flare CVE-2026-30942

MEDIUM

Path Traversal (CWE-22)

2026-03-10 security-advisories@github.com

Path Traversal Red Hat Flare Flintsh

6.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Red Hat

6.5 HIGH

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 10, 2026 - 18:18 nvd

MEDIUM 6.5

DescriptionGitHub Advisory

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files from within the application container. The filename URL parameter is passed to path.join() without sanitization, and getFileStream() performs no path validation, enabling %2F-encoded ../ sequences to escape the uploads/avatars/ directory and read any file accessible to the nextjs process under /app/. Authentication is enforced by Next.js middleware. However, on instances with open registration enabled (the default), any attacker can self-register and immediately exploit this. This vulnerability is fixed in 1.7.3.

AnalysisAI

Flare versions before 1.7.3 contain a path traversal vulnerability in the avatar endpoint that allows authenticated users to read arbitrary files from the application container by exploiting unsanitized filename parameters. Any user with login access, including self-registered accounts on instances with open registration enabled (default configuration), can enumerate and retrieve sensitive files accessible to the Node.js process. The vulnerability requires authentication but poses a significant confidentiality risk on publicly accessible Flare instances without registration restrictions.

Technical ContextAI

This vulnerability (CWE-22: Path Traversal) affects self-hostable file sharing platform that integrates with screenshot tools.. Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files from within the application container. The filename URL parameter is passed to path.join() without sanitization, and getFileStream() performs no path validation, enabling %2F-encoded ../ sequences to escape the uploads/avatars/ directory and read any file acce