- Description
- Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBrick. This issue is exploitable when the product is deployed behind an HTTP proxy that fulfills specific conditions. The specific flaw exists within the read_headers method. The issue results from the inconsistent parsing of terminators of HTTP headers. An attacker can leverage this vulnerability to smuggle arbitrary HTTP requests. Was ZDI-CAN-21876.
- Source
- zdi-disclosures@trendmicro.com
- NVD status
- Awaiting Analysis
CVSS 3.0
- Type
- Secondary
- Base score
- 6.5
- Impact score
- 4.2
- Exploitability score
- 2.2
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
- Severity
- MEDIUM
- zdi-disclosures@trendmicro.com
- CWE-444
- Hype score
- Not currently trending
RubySec ➜ CVE-2025-6442 (webrick): Ruby WEBrick read_headers method can lead to HTTP Request/Response Smuggling https://t.co/79kR0UO5Sl
@rubylandnews
28 Jun 2025
122 Impressions
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CVE-2025-6442 Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations o… https://t.co/A2EtQiGSsK
@CVEnew
25 Jun 2025
10 Impressions
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Ruby WEBrick read_header HTTP Request Smuggling Vulnerability (CVE-2025-6442) #CVE20256442 #CyberSecurity #HTTPRequestSmugglingVulnerability #Ruby https://t.co/OWuuh9nT1n https://t.co/z607loT4Ka
@SystemTek_UK
24 Jun 2025
19 Impressions
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