{"id":"UBUNTU-CVE-2026-97711","details":"Serialize JavaScript serializes JavaScript values to a superset of JSON that includes regular expressions and functions. From 7.1.1 until 7.1.2, function values serialized by serialize-javascript are not fully protected against script-closing tags in attacker-influenced function source because SCRIPT_CLOSE_REGEXP can consume a second closing tag inside one match. When the serialized function is embedded in a script element, the surviving closing tag terminates the element early and causes the remaining output to be parsed as HTML, enabling cross-site scripting in the page origin. Only function values are affected; ordinary data values and options.isJSON output are unaffected. This issue is fixed in version 7.1.2.","modified":"2026-10-01T00:22:47.640890215Z","published":"2026-09-29T16:17:00Z","upstream":["CVE-2026-97711"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-97711"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-97711"},{"type":"REPORT","url":"https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-gfhx-hw2g-v5hg"},{"type":"REPORT","url":"https://github.com/yahoo/serialize-javascript/commit/2bdbaaff9cb8a4639135eb24cfcd383d3fefb534"},{"type":"REPORT","url":"https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.2"}],"affected":[{"package":{"name":"node-serialize-javascript","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-serialize-javascript?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.1-2","6.0.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-serialize-javascript","binary_version":"6.0.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97711.json"}},{"package":{"name":"node-serialize-javascript","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-serialize-javascript?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-serialize-javascript","binary_version":"6.0.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97711.json"}},{"package":{"name":"node-serialize-javascript","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-serialize-javascript?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.2-1","7.0.4+~5.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-serialize-javascript","binary_version":"7.0.4+~5.0.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97711.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"type":"Ubuntu","score":"medium"}]}