CVE-2020-11076GHSA-X7JG-6PWG-FX5H
HTTP Smuggling via Transfer-Encoding Header in Puma
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.12.5, 4.3.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
Summary
In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.
Timeline
- CVE published
- Record last updated
Affected versions
- puma puma
fixed in 3.12.5; From 4.0.0 · fixed in 4.3.4
- pumaRubyGems
fixed in 3.12.5
- pumaRubyGems
From 4.0.0 · fixed in 4.3.4