High 8.3Published Mar 10, 2026

CVE-2026-30942Flare has a Path Traversal in /api/avatars/[filename]

Updated under an hour ago (Oct 27, 2026, 10:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for FlintSH Flare

Exploited in the last 30 days

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.

CVSS: 8.3 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FlintSH Flare flintsh:flare (from the name)	before 1.7.3	CNA record
flintsh flare flintsh:flare	before 1.7.3	NVD

References

References

https://github.com/FlintSH/Flare/security/advisories/GHSA-h639-p7m9-mpgp	x-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/FlintSH/Flare/commit/cd894cc480619aef958be5de72b1445222fd8d36	x-refsource-misc, patch
https://github.com/FlintSH/Flare/releases/tag/v1.7.3	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.