{"action":"Upgrade node-immutable to 4.3.9-1 or later.","affected":[{"fixed":"4.3.9-1","introduced":"0"}],"component":"node-immutable","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.3.9-1"],"id":"tcs_01M5NT66AFP32RDPK4WXNVXMEA","modified_at":"2026-10-01T03:03:28.518623247Z","published_at":"2026-07-08T16:16:34.517Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59880","https://security-tracker.debian.org/tracker/CVE-2026-59880"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59880#Debian:14/node-immutable","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59880"}],"summary":"Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, Immutable.Map and Immutable.Set keep keys that share the same 32-bit hash in a HashCollisionNode collision bu"}