CVE-2026-38969

NameCVE-2026-38969
Descriptionruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-webrick (PTS)bookworm1.8.1-1vulnerable
trixie1.9.1-1vulnerable
forky, sid1.9.2-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby-webricksource(unstable)(unfixed)

Notes

https://github.com/ruby/webrick/issues/198
https://github.com/ruby/webrick/pull/199

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