Partial String Comparison in Rack - CVE-2026-34785
Published: April 2, 2026
Vulnerability identifier: #VU124827
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-34785
CWE-ID: CWE-187
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Rack
Affected software:
Rack
Rack
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to partial string comparison issue in "Rack::Static". A remote attacker can gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2026-34785
Install updates from vendor's website.