SB20261110294 - Path traversal in i18next-fs-backend

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Main Vulnerability Database SB20261110294

SB20261110294 - Path traversal in i18next-fs-backend

Published: November 10, 2026

Security Bulletin ID SB20261110294
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2026-41693)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to read or overwrite files outside the intended locale directory, subject to the Node process's filesystem privileges.

The vulnerability exists due to path traversal in i18next-fs-backend when unvalidated lng or ns values are interpolated into loadPath or addPath templates. A remote attacker can supply crafted language or namespace values, such as ?lng=../../../../etc/passwd, to read files or, when saveMissing is enabled and attacker-controlled values are forwarded, overwrite files with attacker-controlled JSON.


Remediation

Install update from vendor's website.

References