HIGH 7.5 RubyGems

HTTP Smuggling via Transfer-Encoding Header in Puma

GHSA-x7jg-6pwg-fx5h · CVE-2020-11076

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Description

Impact

By using an invalid transfer-encoding header, an attacker could smuggle an HTTP response.

Originally reported by @ZeddYu, who has our thanks for the detailed report.

Patches

The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

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