SB2026011953 - Information Exposure Through Timing Discrepancy in FileBrowser
Published: January 19, 2026 Updated: June 5, 2026
Security Bulletin ID
SB2026011953
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2026-23849)
CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the JSONAuth.Auth function contains a logic flaw. A remote attacker can measure the response time of the /api/login endpoint and enumerate valid usernames.
Remediation
Install update from vendor's website.