{"id":"CVE-2026-109932","aliases":["CLSA-2026-1793446003","CLSA-2026-1793446165","CLSA-2026-1793630454","CLSA-2026-1793630463","CLSA-2026-1793630540","CLSA-2026-1793630553","CLSA-2026-1793630554","CLSA-2026-1793973403","CLSA-2026-1793973612","CLSA-2026-1794058909","CLSA-2026-1794216395","CLSA-2026-1794250627","CLSA-2026-1794310630","DEBIAN-CVE-2026-109932","EUVD-2026-102321","GHSA-9fm3-97px-rjf6","RHSA-2026:84657","RHSA-2026:84706","UBUNTU-CVE-2026-109932"],"status":"published","title":"undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00321,"percentile":0.25441,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-405","CWE-770"],"published":"2026-10-15T18:44:22Z","modified":"2026-11-10T13:15:07Z","fixes":[{"ecosystem":"npm","package":"undici","fixed_in":["6.29.1","7.30.1","8.12.2"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"node-undici","fixed_in":["8.12.2+dfsg+~cs3.2.3-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"6.29.1"}]}]},{"source":"ghsa","ecosystem":"npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.30.1"}]}]},{"source":"ghsa","ecosystem":"npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.12.2"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.1-tuxcare.0"},{"fixed":"6.11.1-tuxcare.9"}]}],"versions":["6.11.1","6.11.1-tuxcare.1","6.11.1-tuxcare.2","6.11.1-tuxcare.3","6.11.1-tuxcare.4","6.11.1-tuxcare.5","6.11.1-tuxcare.6","6.11.1-tuxcare.7","6.11.1-tuxcare.8"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.28.5-tuxcare.0"},{"fixed":"5.28.5-tuxcare.11"}]}],"versions":["5.28.5","5.28.5-tuxcare.1","5.28.5-tuxcare.10","5.28.5-tuxcare.2","5.28.5-tuxcare.3","5.28.5-tuxcare.4","5.28.5-tuxcare.5","5.28.5-tuxcare.6","5.28.5-tuxcare.7","5.28.5-tuxcare.8","5.28.5-tuxcare.9"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.29.0-tuxcare.0"},{"fixed":"7.29.0-tuxcare.5"}]}],"versions":["7.29.0","7.29.0-tuxcare.1","7.29.0-tuxcare.2","7.29.0-tuxcare.3","7.29.0-tuxcare.4"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.24.4-tuxcare.0"},{"fixed":"7.24.4-tuxcare.6"}]}],"versions":["7.24.4","7.24.4-tuxcare.1","7.24.4-tuxcare.2","7.24.4-tuxcare.3","7.24.4-tuxcare.4","7.24.4-tuxcare.5"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.7-tuxcare.0"},{"fixed":"6.19.7-tuxcare.6"}]}],"versions":["6.19.7","6.19.7-tuxcare.1","6.19.7-tuxcare.2","6.19.7-tuxcare.3","6.19.7-tuxcare.4","6.19.7-tuxcare.5"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.28.0-tuxcare.0"},{"fixed":"6.28.0-tuxcare.4"}]}],"versions":["6.28.0","6.28.0-tuxcare.1","6.28.0-tuxcare.2","6.28.0-tuxcare.3"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.20.0-tuxcare.0"},{"fixed":"6.20.0-tuxcare.5"}]}],"versions":["6.20.0","6.20.0-tuxcare.1","6.20.0-tuxcare.2","6.20.0-tuxcare.3","6.20.0-tuxcare.4"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.29.1-tuxcare.0"},{"fixed":"7.29.1-tuxcare.1"}]}],"versions":["7.29.1"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.29.0-tuxcare.0"},{"fixed":"5.29.0-tuxcare.9"}]}],"versions":["5.29.0","5.29.0-tuxcare.1","5.29.0-tuxcare.2","5.29.0-tuxcare.3","5.29.0-tuxcare.4","5.29.0-tuxcare.5","5.29.0-tuxcare.6","5.29.0-tuxcare.7","5.29.0-tuxcare.8"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.28.1-tuxcare.0"},{"fixed":"6.28.1-tuxcare.1"}]}],"versions":["6.28.1"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.5-tuxcare.0"},{"fixed":"6.19.5-tuxcare.7"}]}],"versions":["6.19.5","6.19.5-tuxcare.1","6.19.5-tuxcare.2","6.19.5-tuxcare.3","6.19.5-tuxcare.4","6.19.5-tuxcare.5","6.19.5-tuxcare.6"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.28.0-tuxcare.0"},{"fixed":"7.28.0-tuxcare.10"}]}],"versions":["7.28.0","7.28.0-tuxcare.1","7.28.0-tuxcare.2","7.28.0-tuxcare.3","7.28.0-tuxcare.4","7.28.0-tuxcare.5","7.28.0-tuxcare.6","7.28.0-tuxcare.7","7.28.0-tuxcare.8","7.28.0-tuxcare.9"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:npm","package":"undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.24.8-tuxcare.0"},{"fixed":"7.24.8-tuxcare.1"}]}],"versions":["7.24.8"],"bundled":14},{"source":"osv","ecosystem":"Debian:12","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.0+dfsg1+~cs20.10.9.3-1","5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1","5.15.0+dfsg1+~cs20.10.9.3-1+deb12u2","5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3","5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4","5.19.1+dfsg1+~cs20.10.9.5-1","5.19.1+dfsg1+~cs20.10.9.5-2","5.22.1+dfsg1+~cs20.10.10.2-1","5.26.3+dfsg1+~cs23.10.12-1","5.26.3+dfsg1+~cs23.10.12-2","5.26.3+dfsg1+~cs23.10.12-3","5.28.0+dfsg1+~cs23.11.12.3-1","5.28.0+dfsg1+~cs23.11.12.3-2","5.28.2+dfsg1+~cs23.11.12.3-1","5.28.2+dfsg1+~cs23.11.12.3-2","5.28.2+dfsg1+~cs23.11.12.3-3","5.28.2+dfsg1+~cs23.11.12.3-4","5.28.2+dfsg1+~cs23.11.12.3-5","5.28.2+dfsg1+~cs23.11.12.3-6","5.28.4+dfsg1+~cs23.12.11-1","5.28.4+dfsg1+~cs23.12.11-2","7.1.0+dfsg1+~cs24.12.10-1","7.15.0+dfsg+~cs3.2.0-1","7.15.0+dfsg+~cs3.2.0-3","7.16.0+dfsg+~cs3.2.0-1","7.16.0+dfsg+~cs3.2.0-2","7.18.2+dfsg+~cs3.2.0-1","7.2.3+dfsg1+~cs24.12.11-1","7.2.3+dfsg1+~cs24.12.11-2","7.24.5+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-2","7.24.6+dfsg+~cs3.2.0-3","7.3.0+dfsg1+~cs24.12.11-1","7.3.0+dfsg1+~cs24.12.11-2","8.10.2+dfsg+~cs3.2.2-1","8.12.1+dfsg+~cs3.2.3-1","8.12.2+dfsg+~cs3.2.3-1","8.12.2+dfsg+~cs3.2.3-2","8.5.0+dfsg+~cs3.2.0-1","8.5.0+dfsg+~cs3.2.0-2","8.5.0+dfsg+~cs3.2.0-3","8.9.0+dfsg+~cs3.2.0-1"]},{"source":"osv","ecosystem":"Debian:13","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.15.0+dfsg+~cs3.2.0-1","7.15.0+dfsg+~cs3.2.0-3","7.16.0+dfsg+~cs3.2.0-1","7.16.0+dfsg+~cs3.2.0-2","7.18.2+dfsg+~cs3.2.0-1","7.24.5+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-2","7.24.6+dfsg+~cs3.2.0-3","7.3.0+dfsg1+~cs24.12.11-1","7.3.0+dfsg1+~cs24.12.11-2","8.10.2+dfsg+~cs3.2.2-1","8.12.1+dfsg+~cs3.2.3-1","8.12.2+dfsg+~cs3.2.3-1","8.12.2+dfsg+~cs3.2.3-2","8.5.0+dfsg+~cs3.2.0-1","8.5.0+dfsg+~cs3.2.0-2","8.5.0+dfsg+~cs3.2.0-3","8.9.0+dfsg+~cs3.2.0-1"]},{"source":"osv","ecosystem":"Debian:14","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.12.2+dfsg+~cs3.2.3-1"}]}],"versions":["7.15.0+dfsg+~cs3.2.0-1","7.15.0+dfsg+~cs3.2.0-3","7.16.0+dfsg+~cs3.2.0-1","7.16.0+dfsg+~cs3.2.0-2","7.18.2+dfsg+~cs3.2.0-1","7.24.5+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-1","7.24.6+dfsg+~cs3.2.0-2","7.24.6+dfsg+~cs3.2.0-3","7.3.0+dfsg1+~cs24.12.11-1","7.3.0+dfsg1+~cs24.12.11-2","8.10.2+dfsg+~cs3.2.2-1","8.12.1+dfsg+~cs3.2.3-1","8.5.0+dfsg+~cs3.2.0-1","8.5.0+dfsg+~cs3.2.0-2","8.5.0+dfsg+~cs3.2.0-3","8.9.0+dfsg+~cs3.2.0-1"]},{"source":"osv","ecosystem":"npm","package":"undici","ranges":[{"type":"SEMVER","events":[{"introduced":"5.15.0"},{"fixed":"6.29.1"}]}]},{"source":"osv","ecosystem":"npm","package":"undici","ranges":[{"type":"SEMVER","events":[{"introduced":"7.0.0"},{"fixed":"7.30.1"}]}]},{"source":"osv","ecosystem":"npm","package":"undici","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.12.2"}]}]},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-bin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-docs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-full-i18n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-npm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:11.20.0-1.26.11.1.0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs26-npm-bin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:26.11.1-0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"v8-14.6-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:14.6.202.34-1.26.11.1.0.4.hum1"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-bin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-docs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-full-i18n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-npm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:11.19.0-1.24.21.0.1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"nodejs24-npm-bin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:24.21.0-1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"v8-13.6-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:13.6.233.17-1.24.21.0.1.5.hum1"}]}],"bundled":8},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.22.1+dfsg1+~cs20.10.10.2-1ubuntu1","5.26.3+dfsg1+~cs23.10.12-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.18.2+dfsg+~cs3.2.0-1build1","7.24.6+dfsg+~cs3.2.0-3","8.5.0+dfsg+~cs3.2.0-2","8.5.0+dfsg+~cs3.2.0-3","8.9.0+dfsg+~cs3.2.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"node-undici","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.3.0+dfsg1+~cs24.12.11-2","7.16.0+dfsg+~cs3.2.0-2","7.18.2+dfsg+~cs3.2.0-1","7.18.2+dfsg+~cs3.2.0-1build1"]}],"products":[{"vendor":"nodejs","product":"undici"},{"vendor":"undici","product":"undici"}],"references":[{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-9fm3-97px-rjf6","tags":["Vendor Advisory","advisory","web","article","report"]},{"url":"https://cna.openjsf.org/security-advisories.html","tags":["Vendor Advisory","advisory","web","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109932","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/39f93e142df03e559fe7c3d1fc7fba9beee2c185","tags":["web"]},{"url":"https://github.com/nodejs/undici/commit/53944624462b6797560288c55dbd8c66857bb495","tags":["web"]},{"url":"https://github.com/nodejs/undici/commit/b217373bb024cd93f85eb5b3ffd25684855f60f8","tags":["web"]},{"url":"https://github.com/nodejs/undici/releases/tag/v6.29.1","tags":["web"]},{"url":"https://github.com/nodejs/undici/releases/tag/v7.30.1","tags":["web"]},{"url":"https://github.com/nodejs/undici/releases/tag/v8.12.2","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9fm3-97px-rjf6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109932.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-109932","tags":["advisory"]},{"url":"https://github.com/nodejs/undici","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2026:84657","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-102276","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109383","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109829","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109841","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109869","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109924","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109932","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-87018","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-87029","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84657.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553677","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87018","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87018","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-qrxm-fqhp-jwvm","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553726","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-87029","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87029","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-55wc-3pg8-jfw6","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542707","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-102276","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102276","tags":["advisory"]},{"url":"https://github.com/juliangruber/brace-expansion/commit/0bcbfc0a5928c3073d48f42999d1ce4fc1c42fbc","tags":["article"]},{"url":"https://github.com/juliangruber/brace-expansion/commit/316359e6019c39b3254c8ba8e25dc586a480652c","tags":["article"]},{"url":"https://github.com/juliangruber/brace-expansion/commit/5171e681c0922b7ae8bfaf9a331e309107be6edc","tags":["article"]},{"url":"https://github.com/juliangruber/brace-expansion/commit/6735c94873ca570bcdd6a0690033bdd3126379d3","tags":["article"]},{"url":"https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-6j4f-fj2g-mc7p","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553678","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109383","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109383","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/f75eac00ac17","tags":["article"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-2m5v-pch6-74hx","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553679","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109829","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109829","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/26c2bfb3def0","tags":["article"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-4w7w-5xrc-9h26","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553669","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109841","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109841","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/4f7ef6806e53","tags":["article"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-f72v-6w45-q472","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553656","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109869","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109869","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/b5084c7dc239","tags":["article"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-xjj6-f33q-929c","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553663","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109924","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109924","tags":["advisory"]},{"url":"https://github.com/nodejs/undici/commit/789ef26461c","tags":["article"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-4qv8-2p9j-2685","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553687","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109932","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2026:84706","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84706.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-109932","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-109932","title":"undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T18:44:22.571Z","modified":"2026-10-16T20:00:38.791Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400","CWE-405","CWE-770"],"updated_at":"2026-11-02T14:20:11.24076Z"}],"euvd":[{"id":"EUVD-2026-102321","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T18:44:22Z","modified":"2026-10-16T20:00:38Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T17:00:01.858348Z"}],"ghsa":[{"id":"GHSA-9fm3-97px-rjf6","title":"undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering","description":"### Impact\n\nundici's WebSocket client (including Node.js's bundled `globalThis.WebSocket`) can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the receiver automatically writes a PONG response to the socket and ignores the `false` return value from `socket.write()`, which is a backpressure signal, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric: small inbound PINGs produce a much larger retained outbound queue. Availability is the only impact. undici 5.x, 6.x, 7.x, and 8.x are affected; the WebSocket client was introduced in 5.15.0.\n\n### Patches\n\nUpgrade to `6.29.1`, `7.30.1`, or `8.12.2`, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue.\n\n### Workarounds\n\nNone.","status":"published","published":"2026-10-27T19:02:15Z","modified":"2026-10-27T19:02:17Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400","CWE-405","CWE-770"],"updated_at":"2026-11-02T14:41:38.969831Z"}],"nvd":[{"id":"CVE-2026-109932","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T19:17:22.3Z","modified":"2026-10-19T20:44:42.247Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-400","CWE-405","CWE-770"],"updated_at":"2026-11-02T14:12:59.751798Z"}],"osv":[{"id":"CVE-2026-109932","title":"undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T18:44:22.571Z","modified":"2026-10-28T02:30:55.872603402Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400","CWE-405","CWE-770"],"updated_at":"2026-11-02T15:44:55.61515Z"},{"id":"DEBIAN-CVE-2026-109932","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T19:17:22.3Z","modified":"2026-11-01T05:00:06.181558161Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"GHSA-9fm3-97px-rjf6","title":"undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering","description":"### Impact\n\nundici's WebSocket client (including Node.js's bundled `globalThis.WebSocket`) can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the receiver automatically writes a PONG response to the socket and ignores the `false` return value from `socket.write()`, which is a backpressure signal, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric: small inbound PINGs produce a much larger retained outbound queue. Availability is the only impact. undici 5.x, 6.x, 7.x, and 8.x are affected; the WebSocket client was introduced in 5.15.0.\n\n### Patches\n\nUpgrade to `6.29.1`, `7.30.1`, or `8.12.2`, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue.\n\n### Workarounds\n\nNone.","status":"published","published":"2026-10-27T19:02:15Z","modified":"2026-10-27T19:15:22.400702743Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400","CWE-405","CWE-770"],"updated_at":"2026-11-02T15:46:43.524801Z"},{"id":"RHSA-2026:84657","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-10-20T10:17:41Z","modified":"2026-10-20T10:43:33.48989051Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:84706","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-10-20T10:17:45Z","modified":"2026-10-20T10:43:36.699091514Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"UBUNTU-CVE-2026-109932","description":"undici is an HTTP client library for Node.js. In versions 5.15.0 through 6.29.0, 7.0.0 through 7.30.0, and 8.0.0 through 8.12.1, its WebSocket client, including the bundled WebSocket exposed by Node.js, can be driven to exhaust process memory by a malicious or compromised WebSocket server. For every PING frame received, the client automatically writes a PONG response and ignores the backpressure signal from the socket write, so a server that streams small PING frames while never reading the client's PONGs makes the outbound write queue and heap grow without bound until the Node.js process runs out of memory and terminates. The attack is remote and unauthenticated, needs only a normal WebSocket connection, and is asymmetric, since small inbound PINGs produce a much larger retained outbound queue, with availability the only impact. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, which pause WebSocket frame parsing when the automatic PONG response hits socket backpressure and resume on drain, bounding the outbound queue, and users should upgrade to one of those versions or later. There is no workaround.","status":"published","published":"2026-10-15T19:17:00Z","modified":"2026-10-28T17:50:33Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:55:59.591851Z"},{"id":"CLSA-2026-1793446003","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 6.11.1-tuxcare.9.","status":"published","published":"2026-10-31T12:26:44Z","modified":"2026-10-31T14:45:02.251391808Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"CLSA-2026-1793446165","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 5.28.5-tuxcare.11.","status":"published","published":"2026-10-31T12:29:26Z","modified":"2026-10-31T14:45:03.048333429Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"CLSA-2026-1793630454","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 7.29.0-tuxcare.5.","status":"published","published":"2026-11-02T15:40:54Z","modified":"2026-11-02T19:47:02.859627535Z","updated_at":"2026-11-02T20:28:06.90948Z"},{"id":"CLSA-2026-1793630463","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 7.24.4-tuxcare.6.","status":"published","published":"2026-11-02T15:41:04Z","modified":"2026-11-02T19:47:02.956408582Z","updated_at":"2026-11-02T20:28:06.90948Z"},{"id":"CLSA-2026-1793630540","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 6.19.7-tuxcare.6.","status":"published","published":"2026-11-02T15:42:21Z","modified":"2026-11-02T19:47:02.952526126Z","updated_at":"2026-11-02T20:28:06.90948Z"},{"id":"CLSA-2026-1793630553","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 6.28.0-tuxcare.4.","status":"published","published":"2026-11-02T15:42:32Z","modified":"2026-11-02T19:47:03.067792181Z","updated_at":"2026-11-02T20:28:06.90948Z"},{"id":"CLSA-2026-1793630554","title":"TuxCare security update for undici (2 CVEs)","description":"TuxCare rebuilt undici to address 2 CVEs. Fixed in 6.20.0-tuxcare.5.","status":"published","published":"2026-11-02T15:42:35Z","modified":"2026-11-02T19:47:03.058344836Z","updated_at":"2026-11-02T20:28:06.90948Z"},{"id":"CLSA-2026-1793973403","title":"TuxCare security update for undici (7 CVEs)","description":"TuxCare rebuilt undici to address 7 CVEs. Fixed in 7.29.1-tuxcare.1.","status":"published","published":"2026-11-06T14:56:44Z","modified":"2026-11-06T19:00:03.416565041Z","updated_at":"2026-11-06T19:05:31.753133Z"},{"id":"CLSA-2026-1793973612","title":"TuxCare security update for undici (3 CVEs)","description":"TuxCare rebuilt undici to address 3 CVEs. Fixed in 5.29.0-tuxcare.9.","status":"published","published":"2026-11-06T15:00:13Z","modified":"2026-11-06T19:00:02.361882663Z","updated_at":"2026-11-06T19:05:31.753133Z"},{"id":"CLSA-2026-1794058909","title":"TuxCare security update for undici (4 CVEs)","description":"TuxCare rebuilt undici to address 4 CVEs. Fixed in 6.28.1-tuxcare.1.","status":"published","published":"2026-11-07T14:41:50Z","modified":"2026-11-07T19:00:38.701320866Z","updated_at":"2026-11-07T19:21:34.633914Z"},{"id":"CLSA-2026-1794216395","title":"TuxCare security update for undici (3 CVEs)","description":"TuxCare rebuilt undici to address 3 CVEs. Fixed in 6.19.5-tuxcare.7.","status":"published","published":"2026-11-09T10:26:36Z","modified":"2026-11-09T19:15:16.075552233Z","updated_at":"2026-11-09T19:38:09.278998Z"},{"id":"CLSA-2026-1794250627","title":"TuxCare security update for undici (5 CVEs)","description":"TuxCare rebuilt undici to address 5 CVEs. Fixed in 7.28.0-tuxcare.10.","status":"published","published":"2026-11-09T19:57:08Z","modified":"2026-11-10T01:15:04.448136089Z","updated_at":"2026-11-10T01:43:20.132342Z"},{"id":"CLSA-2026-1794310630","title":"TuxCare security update for undici (14 CVEs)","description":"TuxCare rebuilt undici to address 14 CVEs. Fixed in 7.24.8-tuxcare.1.","status":"published","published":"2026-11-10T12:37:11Z","modified":"2026-11-10T13:15:07.241296257Z","updated_at":"2026-11-10T13:29:51.103746Z"}]}}