{"id":"CVE-2026-48779","revision":"02cbc16ce77b4c92bad67628ed78f14d","records":[{"revision":"02cbc16ce77b4c92bad67628ed78f14d","observedAt":"2026-10-25T12:17:32.273+00:00","statement":{"source":"nvd","id":"CVE-2026-48779","aliases":[],"title":"ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vuln…","description":"ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.","state":0,"publishedAt":"2026-06-17T13:20:42.887+00:00","modifiedAt":"2026-09-11T13:18:14.097+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"},{"system":"CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7","https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53","https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94","https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8","https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p","https://access.redhat.com/errata/RHSA-2026:29197","https://access.redhat.com/errata/RHSA-2026:33155","https://access.redhat.com/errata/RHSA-2026:33160","https://access.redhat.com/errata/RHSA-2026:33163","https://access.redhat.com/errata/RHSA-2026:33173","https://access.redhat.com/errata/RHSA-2026:33183","https://access.redhat.com/errata/RHSA-2026:33574","https://access.redhat.com/errata/RHSA-2026:34342","https://access.redhat.com/errata/RHSA-2026:36754","https://access.redhat.com/errata/RHSA-2026:36820","https://access.redhat.com/errata/RHSA-2026:37272","https://access.redhat.com/errata/RHSA-2026:40984","https://access.redhat.com/errata/RHSA-2026:41928","https://access.redhat.com/errata/RHSA-2026:41941","https://access.redhat.com/errata/RHSA-2026:41944","https://access.redhat.com/errata/RHSA-2026:48151","https://access.redhat.com/errata/RHSA-2026:56366","https://access.redhat.com/errata/RHSA-2026:56431","https://access.redhat.com/errata/RHSA-2026:57013","https://access.redhat.com/errata/RHSA-2026:57590","https://access.redhat.com/errata/RHSA-2026:60520","https://access.redhat.com/errata/RHSA-2026:65126","https://access.redhat.com/errata/RHSA-2026:66488","https://access.redhat.com/errata/RHSA-2026:66545","https://access.redhat.com/security/cve/CVE-2026-48779","https://bugzilla.redhat.com/show_bug.cgi?id=2489661","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48779.json"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-48779","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-400","CWE-770","CWE-1050"],"productCriteria":["cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-06-17T13:20:42.887","lastModified":"2026-09-11T13:18:14.097"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-48779","identifiers":["CVE-2026-48779"]},"retained":false,"historicalAffected":[]}],"coverage":[]}