SB20260428166 - Confluence Data Center update for node-tar

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Main Vulnerability Database SB20260428166

SB20260428166 - Confluence Data Center update for node-tar

Published: April 28, 2026

Security Bulletin ID SB20260428166
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2026-26960)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the tar.extract() function when handling hardlinks inside archives. A remote user can pass a specially crafted archive to the application and read or write files to arbitrary locations on the system. 


Remediation

Install update from vendor's website.

References