{"id":"UBUNTU-CVE-2026-73089","details":"Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `\u003cyear\u003e-\u003cmonth\u003e-\u003cday\u003e` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.","modified":"2026-08-19T11:11:14Z","published":"2026-08-11T17:19:00Z","upstream":["CVE-2026-73089"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-73089"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-73089"},{"type":"REPORT","url":"https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx"},{"type":"REPORT","url":"https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405"},{"type":"REPORT","url":"https://github.com/browserslist/browserslist/releases/tag/4.28.7"}],"affected":[{"package":{"name":"node-browserslist","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-browserslist?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.11.3-1","2.11.3-1build3","2.11.3-1build4"],"ecosystem_specific":{"binaries":[{"binary_version":"2.11.3-1build4","binary_name":"node-browserslist"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73089.json"}},{"package":{"name":"node-browserslist","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-browserslist?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.11.3-1build4"],"ecosystem_specific":{"binaries":[{"binary_name":"node-browserslist","binary_version":"2.11.3-1build4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73089.json"}},{"package":{"name":"node-browserslist","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-browserslist?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.16.3+~cs5.4.72-3","4.17.0+~cs5.6.76-1","4.18.1+~cs5.1.2-1","4.19.1+~cs5.1.2-1","4.19.1+repack+~cs5.1.2-2","4.19.3+~cs5.1.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.19.3+~cs5.1.3-1","binary_name":"node-browserslist"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73089.json"}},{"package":{"name":"node-browserslist","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-browserslist?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.21.4+~cs6.1.17-2","4.22.1+~cs6.1.28-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.22.1+~cs6.1.28-1","binary_name":"node-browserslist"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73089.json"}},{"package":{"name":"node-browserslist","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-browserslist?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.25.2+~cs6.3.22-1","4.26.0+~cs8.11.27-1","4.27.0+~cs8.11.53-2","4.28.1+~cs8.14.48-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.28.1+~cs8.14.48-1","binary_name":"node-browserslist"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73089.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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}