PT-2026-58886 · Notepad++ · Notepad++
CVE-2026-52886
·
Published
2026-07-15
·
Updated
2026-09-12
CVSS v4.0
5.1
Medium
| Vector | AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
Notepad++ versions prior to 8.9.7
Description
Notepad++ fails to perform path normalization when validating the
backupFilePath attribute from session.xml using the std::wstring::starts with function. This allows the use of parent-directory sequences during snapshot-mode restoration to read arbitrary user-readable files located outside the intended backup directory into an editor tab.Recommendations
Update to version 8.9.7.
Exploit
Fix
Path traversal
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Notepad++