{"action":"Upgrade msgpack5 to 6.1.0 or later.","affected":[{"fixed":"6.1.0","introduced":"0"}],"component":"msgpack5","cve_ids":["CVE-2026-107298"],"ecosystem":"npm","epss":0.00372,"exploited":false,"fixed_versions":["6.1.0"],"ghsa_id":"GHSA-24ch-f2g6-9hhh","id":"tcs_01M5KERXTTX8XTKTG7AHNC1QPM","modified_at":"2026-10-08T18:00:09.700213613Z","published_at":"2026-10-08T17:39:51Z","references":["https://osv.dev/vulnerability/GHSA-24ch-f2g6-9hhh","https://github.com/mcollina/msgpack5/security/advisories/GHSA-24ch-f2g6-9hhh","https://github.com/mcollina/msgpack5/commit/1e2b5874e555dd7c99417f64788a03b0590bb102","https://github.com/mcollina/msgpack5","https://github.com/mcollina/msgpack5/releases/tag/v6.1.0"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-24ch-f2g6-9hhh","url":"https://osv.dev/vulnerability/GHSA-24ch-f2g6-9hhh"}],"summary":"msgpack5: Deeply nested input can exhaust the decoder stack"}