ByteOS Network

NVD Vulnerability Details :

CVE-2026-52884

Analyzed

Source-security-advisories@github.com

Published At-26 Jun, 2026 | 21:16

Updated At-29 Jun, 2026 | 21:22

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory() does NOT canonicalize the path before checking. It uses a prefix-based check (PathIsPrefix() or equivalent) that matches paths starting with trusted directory strings. A path traversal using ..\..\ after a trusted directory prefix passes the check while resolving to an untrusted location. The CVE-2026-48800 patch adds isInTrustedDirectory() validation in Command::run() (RunDlg.cpp) before calling ShellExecute(). This function checks whether the resolved executable path is under a trusted directory. This vulnerability is fixed in 8.9.6.2.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
			N/A

Type: Secondary

Version: 3.1

Base score: 7.8

Base severity: HIGH

Vector:

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Type: N/A

Version:

Base score:

Base severity: N/A

Vector:

CPE Matches

notepad-plus-plus>>notepad\+\+>>8.9.6.1

cpe:2.3:a:notepad-plus-plus:notepad\+\+:8.9.6.1:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-42	Secondary	security-advisories@github.com

CWE ID: CWE-42

Type: Secondary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/notepad-plus-plus/notepad-plus-plus/commit/ea1508855e9c4528f6198ce9d345f13cb759ebf4	security-advisories@github.com	Patch
https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-p58x-r3c9-x9p6	security-advisories@github.com	Exploit Patch Vendor Advisory

Hyperlink: https://github.com/notepad-plus-plus/notepad-plus-plus/commit/ea1508855e9c4528f6198ce9d345f13cb759ebf4

Source: security-advisories@github.com

Resource:

Patch

Hyperlink: https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-p58x-r3c9-x9p6

Source: security-advisories@github.com

Resource:

Exploit

Patch

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History