CVE-2026-64607

NameCVE-2026-64607
DescriptionHttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported `Content-Encoding` header value in the response message. Please note this defect does not affect HttpClient based on the async i/o model. This issue affects Apache HttpComponents Client: from 5.0-alpha1 through 5.6.2.
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
commons-httpclient (PTS)forky, sid, bookworm, bullseye, trixie3.1-16undetermined
httpcomponents-client (PTS)bullseye4.5.13-2undetermined
forky, sid, bookworm, trixie4.5.14-1undetermined

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
commons-httpclientsource(unstable)undetermined
httpcomponents-clientsource(unstable)undetermined

Notes

https://lists.apache.org/thread/qqfzo3fqcdk4l5496vz95ppvl4ty511q

Search for package or bug name: Reporting problems