CVE-2025-49007: ReDoS Vulnerability in Rack::Multipart handle_mime_head

June 5, 2025

There is a denial of service vulnerability in the Content-Disposition parsing component of Rack. This is very similar to the previous security issue CVE-2022-44571.

References

github.com/advisories/GHSA-47m2-26rw-j2jw
github.com/rack/rack
github.com/rack/rack/commit/4795831a0a310c2d31102749e551b38faab6401f
github.com/rack/rack/commit/aed514df37e33907df3c971ed3ca9a0a20ac2901
github.com/rack/rack/security/advisories/GHSA-47m2-26rw-j2jw
nvd.nist.gov/vuln/detail/CVE-2025-49007

Code Behaviors & Features

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