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TI-2018-12658 Aliases CVE-2018-17785GHSA-4r64-wf76-c53p

In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI…

Priority LOW 37CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI that has /static or /static/js at the beginning, as demonstrated by reading the /etc/passwd file.

Why it matters now

EPSS 0.02122 81st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed com.github.blynkkk:blynk-server (Maven): 0.39.7

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—com.github.blynkkk:blynk-server (Maven)before 0.39.70.39.7Patch availableGHSA-4r64-wf76-c53p
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • com.github.blynkkk:blynk-server (Maven) Vendor— Affected before 0.39.7 Fixed in 0.39.7 Patch available GHSA-4r64-wf76-c53p

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:blynk:blynk-server:*:*:*:*:*:*:*:*before 0.39.7VulnerableBlynk
  • cpe:2.3:a:blynk:blynk-server:*:*:*:*:*:*:*:* Versions before 0.39.7 Vulnerable ·Blynk

Remediation

  • Fix · GHSA-4r64-wf76-c53p com.github.blynkkk:blynk-server (Maven) Fixed in 0.39.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17785
  2. 2026-10-03 Alias added: GHSA-4r64-wf76-c53p

References

Exploit 1

Advisory 3

Other 1

Sources

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