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TI-2026-23464 Aliases CVE-2026-30231

Flare: Private File IDOR via raw/direct endpoints

Priority LOW 27CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00313 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Flare (FlintSH): 1.7.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FlintSHFlarebefore 1.7.21.7.2Patch availableCNA
  • Flare VendorFlintSH Affected before 1.7.2 Fixed in 1.7.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:flintsh:flare:*:*:*:*:*:*:*:*before 1.7.2VulnerableFlintSH
  • cpe:2.3:a:flintsh:flare:*:*:*:*:*:*:*:* Versions before 1.7.2 Vulnerable ·FlintSH

Remediation

  • Fix · CNA Flare (FlintSH) Fixed in 1.7.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30231

References

Exploit 1

  • TI-2026-23767 Flare has a Path Traversal in /api/avatars/[filename] CVSS 4.0HIGH 8.3
  • TI-2026-23463 Flare: Password‑Protected Thumbnail Bypass CVSS 4.0HIGH 8.2
  • TI-2026-21472 Flare has XSS vulnerability in Raw File Preview CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences