← CVE Intelligence

CVE-2026-52886

Notepad++: session.xml backupFilePath starts_with Bypass PUBLISHED

Description (CNA)

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, Notepad++ validates the backupFilePath attribute from session.xml with std::wstring::starts_with against the expected backup directory without path normalization, allowing parent-directory sequences during snapshot-mode restoration to read an arbitrary user-readable file outside the backup directory into an editor tab. This issue is fixed in version 8.9.7.

Affected (CNA)

Vendor / productVersions
notepad-plus-plus / notepad-plus-plusaffected < 8.9.7

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.