Vulnerability DatabaseCVE-2025-6442
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CVE-2025-6442
June 25, 2025
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability
Affected Packages
https://github.com/ruby/webrick.git (GITHUB):
Affected version(s) >=v1.4.0 < v1.8.2
Fix Suggestion:
Update to version v1.8.2
webrick (RUBY):
Affected version(s) >=1.3.1 <1.8.2
Fix Suggestion:
Update to version 1.8.2
Related Resources (5)
https://www.zerodayinitiative.com/advisories/ZDI-25-414
https://www.zerodayinitiative.com/advisories/ZDI-25-414/
https://github.com/ruby/webrick/commit/ee60354bcb84ec33b9245e1d1aa6e1f7e8132101#diff-ad02984d873efb089aa51551bc6b7d307a53e0ba1ac439e91d69c2e58a478864
https://github.com/ruby/webrick
https://nvd.nist.gov/vuln/detail/CVE-2025-6442
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CVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-444
EPSS
Base Score:
0.07