{"id":"DEBIAN-CVE-2026-6019","details":"http.cookies.Morsel.js_output() returns an inline \u003cscript\u003e snippet and only escapes \" for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence \u003c/script\u003e inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.","modified":"2026-09-14T17:03:25.729888664Z","published":"2026-04-22T20:16:42.617Z","upstream":["CVE-2026-6019"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-6019"}],"affected":[{"package":{"name":"pypy3","ecosystem":"Debian:12","purl":"pkg:deb/debian/pypy3?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.3.11+dfsg-2","7.3.11+dfsg-2+deb12u1","7.3.11+dfsg-2+deb12u2","7.3.11+dfsg-2+deb12u3","7.3.12+dfsg-1","7.3.12~rc1+dfsg-1","7.3.12~rc2+dfsg-1","7.3.13+dfsg-1","7.3.14+dfsg-1","7.3.15+dfsg-1","7.3.16+dfsg-1","7.3.16+dfsg-2","7.3.17+dfsg-1","7.3.17+dfsg-2","7.3.17+dfsg-3","7.3.18+dfsg-1","7.3.18+dfsg-2","7.3.19+dfsg-1","7.3.19+dfsg-2","7.3.20+dfsg-1","7.3.20+dfsg-2","7.3.20+dfsg-3","7.3.20+dfsg-4","7.3.21+dfsg-1","7.3.21+dfsg-2","7.3.21+dfsg-3","7.3.21+dfsg-4","7.3.22+dfsg-1","7.3.23+dfsg-1","7.3.23+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"pypy3","ecosystem":"Debian:13","purl":"pkg:deb/debian/pypy3?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.3.19+dfsg-2","7.3.20+dfsg-1","7.3.20+dfsg-2","7.3.20+dfsg-3","7.3.20+dfsg-4","7.3.21+dfsg-1","7.3.21+dfsg-2","7.3.21+dfsg-3","7.3.21+dfsg-4","7.3.22+dfsg-1","7.3.23+dfsg-1","7.3.23+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"pypy3","ecosystem":"Debian:14","purl":"pkg:deb/debian/pypy3?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.3.19+dfsg-2","7.3.20+dfsg-1","7.3.20+dfsg-2","7.3.20+dfsg-3","7.3.20+dfsg-4","7.3.21+dfsg-1","7.3.21+dfsg-2","7.3.21+dfsg-3","7.3.21+dfsg-4","7.3.22+dfsg-1","7.3.23+dfsg-1","7.3.23+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"python3.11","ecosystem":"Debian:12","purl":"pkg:deb/debian/python3.11?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.11.2-6","3.11.2-6+deb12u1","3.11.2-6+deb12u2","3.11.2-6+deb12u3","3.11.2-6+deb12u4","3.11.2-6+deb12u5","3.11.2-6+deb12u6","3.11.2-6+deb12u7","3.11.2-6+deb12u8","3.11.3-1","3.11.3-2","3.11.4-1","3.11.5-1","3.11.5-2","3.11.5-3","3.11.6-1","3.11.6-2","3.11.6-3","3.11.6-3~hurd.2","3.11.7-1","3.11.7-2","3.11.8-1","3.11.8-1.1~exp1","3.11.8-1.1~exp2","3.11.8-2","3.11.8-3","3.11.8-3+hurd.1","3.11.9-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"python3.13","ecosystem":"Debian:13","purl":"pkg:deb/debian/python3.13?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.13.5-2+deb13u2"}]}],"versions":["3.13.5-2","3.13.5-2+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"python3.13","ecosystem":"Debian:14","purl":"pkg:deb/debian/python3.13?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.13.14-1"}]}],"versions":["3.13.11-1","3.13.12-1","3.13.5-2","3.13.6-1","3.13.7-1","3.13.8-1","3.13.9-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}},{"package":{"name":"python3.14","ecosystem":"Debian:14","purl":"pkg:deb/debian/python3.14?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.14.5~rc1-1"}]}],"versions":["3.14.0-1","3.14.0-2","3.14.0-3","3.14.0-4","3.14.0-5","3.14.0~a7-1","3.14.0~b1-1","3.14.0~b2-1","3.14.0~b3-1","3.14.0~b4-1","3.14.0~rc1-1","3.14.0~rc2-1","3.14.0~rc3-1","3.14.2-1","3.14.3-1","3.14.3-2","3.14.3-3","3.14.3-4","3.14.3-5","3.14.4-1","3.14.4-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6019.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}