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MEDIUM5.9

GHSA-c2f4-cvqm-65w2

Puma HTTP Request/Response Smuggling vulnerability

Quick fix

GHSA-c2f4-cvqm-65w2 — puma: upgrade to the fixed version with the command below.

bundle update puma

Details

### Impact Prior to versions 6.4.2 and 5.6.8, puma exhibited dangerous behavior when parsing chunked transfer encoding bodies.

Fixed versions limit the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption.

### Patches

The vulnerability has been fixed in 6.4.2 and 5.6.8.

### Workarounds

No known workarounds.

### References

* [HTTP Request Smuggling](https://portswigger.net/web-security/request-smuggling) * Open an issue in [Puma](https://github.com/puma/puma) * See our [security policy](https://github.com/puma/puma/security/policy)

Are you affected?

Enter the version of the package you're using.

Affected packages

RubyGems/puma
Introduced in: 6.0.0Fixed in: 6.4.2
Fixbundle update puma
RubyGems/puma
Introduced in: 0Fixed in: 5.6.8
Fixbundle update puma

References