{"action":"Upgrade node-immutable to 4.3.8-1 or later.","affected":[{"fixed":"4.3.8-1","introduced":"0"}],"component":"node-immutable","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.3.8-1"],"id":"tcs_01M5NRHJF6AVSH7KND6QKCJN4S","modified_at":"2026-10-31T10:01:13.872600630Z","published_at":"2026-03-06T19:16:21.557Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-29063","https://security-tracker.debian.org/tracker/CVE-2026-29063"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-29063#Debian:14/node-immutable","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-29063"}],"summary":"Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(),"}