Path Traversal Vulnerability in Notepad++ by Notepad++ Team
CVE-2026-52884

7.8HIGH

Key Information:

Vendor

Notepad-plus-plus

Status
Notepad-plus-plus
Vendor
CVE Published:
26 June 2026

What is CVE-2026-52884?

Notepad++ version 8.9.6.1 is susceptible to a path traversal vulnerability due to improper canonicalization of paths in the isInTrustedDirectory() function. This allows attackers to exploit the system by resolving paths to untrusted locations using a prefix-based check, effectively bypassing security measures. The issue is addressed in version 8.9.6.2, where validation is added to ensure that the resolved executable paths reside within a trusted directory before execution.

Affected Version(s)

notepad-plus-plus = 8.9.6.1

References

https://github.com/notepad-plus-plus/notepad-plus-plus/se...
x_refsource_CONFIRM
https://github.com/notepad-plus-plus/notepad-plus-plus/co...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.