{"id":"DEBIAN-CVE-2026-14803","details":"Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder.  The pure-Perl decode path (`_decode_value` dispatching to `_decode_array` and `_decode_object`) recurses with no depth limit, so a small deeply nested JSON document can consume excessive memory.  This path is the default when Cpanel::JSON::XS is not installed or `MOJO_NO_JSON_XS=1` is set; the Cpanel::JSON::XS fast path is not affected.  Any caller that decodes an untrusted JSON body, for example `Mojo::Message::json` reached through `$c-\u003ereq-\u003ejson`, can exhaust process memory and cause denial of service.","modified":"2026-09-14T17:02:19.832259168Z","published":"2026-07-06T02:16:21.683Z","upstream":["CVE-2026-14803"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-14803"}],"affected":[{"package":{"name":"libmojolicious-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libmojolicious-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.31+dfsg-1","9.33+dfsg-1","9.34+dfsg-1","9.35+dfsg-1","9.36+dfsg-1","9.36+dfsg-1~bpo12+2","9.37+dfsg-1","9.37+dfsg-2","9.37+dfsg-2~bpo12+1","9.38+dfsg-1","9.39+dfsg-1","9.42+dfsg-1","9.42+dfsg-1~bpo13+2","9.45+dfsg-1","9.45+dfsg-2","9.46+dfsg-1","9.47+dfsg-1","9.48+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"}},{"package":{"name":"libmojolicious-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libmojolicious-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.39+dfsg-1","9.42+dfsg-1","9.42+dfsg-1~bpo13+2","9.45+dfsg-1","9.45+dfsg-2","9.46+dfsg-1","9.47+dfsg-1","9.48+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"}},{"package":{"name":"libmojolicious-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libmojolicious-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.47+dfsg-1"}]}],"versions":["9.39+dfsg-1","9.42+dfsg-1","9.42+dfsg-1~bpo13+2","9.45+dfsg-1","9.45+dfsg-2","9.46+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}