HTTP Request Smuggling Affecting ruby3.2-debugsource package, versions <0:3.2.8-184.amzn2023.0.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2023-RUBY32DEBUGSOURCE-11335727
- published30 Jul 2025
- disclosed25 Jun 2025
Introduced: 25 Jun 2025
CVE-2025-6442 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 ruby3.2-debugsource to version 0:3.2.8-184.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2025-1115.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby3.2-debugsource package and not the ruby3.2-debugsource package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
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.