CVE-2026-30942 (GCVE-0-2026-30942)
Vulnerability from cvelistv5 – Published: 2026-03-10 16:44 – Updated: 2026-03-10 17:40
VLAI
EPSS
VEX
Title
Flare has a Path Traversal in /api/avatars/[filename]
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-10 17:39 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FlintSH/Flare/security/advisor… | x_refsource_CONFIRM |
| https://github.com/FlintSH/Flare/commit/cd894cc48… | x_refsource_MISC |
| https://github.com/FlintSH/Flare/releases/tag/v1.7.3 | x_refsource_MISC |
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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