{"id":"DEBIAN-CVE-2026-7381","details":"Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting.  Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment.  A malicious client can set the X-Sendfile-Type header to \"X-Accel-Redirect\" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server.  Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack.  This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the \"X-Accel-Redirect\" type.","modified":"2026-09-14T17:03:32.468696108Z","published":"2026-04-29T23:16:19.897Z","upstream":["CVE-2026-7381"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-7381"}],"affected":[{"package":{"name":"libplack-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libplack-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0050-1","1.0051-1","1.0054-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"}},{"package":{"name":"libplack-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libplack-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0051-1","1.0054-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"}},{"package":{"name":"libplack-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libplack-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0051-1","1.0054-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}