PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-6057 FalkorDB CVE debrief

FalkorDB Browser 1.9.3 contains an unauthenticated path traversal vulnerability in its file upload API. The flaw allows remote attackers to write arbitrary files to the server filesystem, which can lead to remote code execution. The vulnerability is classified as CWE-22 (Path Traversal) and carries a CVSS 3.1 score of 9.8 (Critical), indicating network-based exploitation with low attack complexity, no required privileges or user interaction, and high impact across confidentiality, integrity, and availability. The CVE was published on April 10, 2026, and last modified on May 19, 2026. The vulnerability status in NVD is currently 'Deferred'. A pull request (#1611) in the FalkorDB Browser GitHub repository appears related to addressing this issue.

Vendor
FalkorDB
Product
FalkorDB Browser
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-10
Original CVE updated
2026-05-19
Advisory published
2026-04-10
Advisory updated
2026-05-19

Who should care

Organizations running FalkorDB Browser 1.9.3 in production environments; security teams managing graph database visualization tools; DevOps and infrastructure teams with externally exposed FalkorDB Browser instances; incident response teams tracking critical unauthenticated RCE vulnerabilities in open-source database tools

Technical summary

The vulnerability exists in the file upload API of FalkorDB Browser 1.9.3. An unauthenticated remote attacker can exploit insufficient path validation to traverse the directory structure and write files to arbitrary locations on the server filesystem. This arbitrary file write capability enables attackers to achieve remote code execution by overwriting executable files, placing web shells, or modifying configuration files. The attack requires no authentication, making internet-exposed instances particularly vulnerable.

Defensive priority

critical

Recommended defensive actions

  • Upgrade FalkorDB Browser to a version beyond 1.9.3 once a patched release is available; monitor the FalkorDB Browser GitHub repository for security updates
  • Restrict network access to FalkorDB Browser instances to trusted administrative hosts only; do not expose the application to untrusted networks or the public internet
  • Review and disable file upload functionality if not required for business operations
  • Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns (e.g., '../', '..%2f', encoded variants) in file upload requests
  • Enable comprehensive logging for file upload API endpoints and monitor for anomalous write operations outside expected directories
  • Verify file upload implementations enforce strict server-side validation of file paths, rejecting any directory traversal sequences and restricting writes to designated sandboxed directories

Evidence notes

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Weakness: CWE-22 (Path Traversal). NVD status: Deferred.

Official resources

2026-04-10T10:16:04.547Z