{"action":"Upgrade msgpack5 to 6.1.0 or later.","affected":[{"fixed":"6.1.0","introduced":"0"}],"component":"msgpack5","cve_ids":["CVE-2026-107300"],"ecosystem":"npm","epss":0.00426,"exploited":false,"fixed_versions":["6.1.0"],"ghsa_id":"GHSA-5x5g-h9x8-2fh9","id":"tcs_01M5KF4ZTN4VBACR1TQ6JQXGC9","modified_at":"2026-10-08T18:00:08.893076738Z","published_at":"2026-10-08T17:40:06Z","references":["https://osv.dev/vulnerability/GHSA-5x5g-h9x8-2fh9","https://github.com/mcollina/msgpack5/security/advisories/GHSA-5x5g-h9x8-2fh9","https://github.com/mcollina/msgpack5/commit/77fbef144d05def5d16fc22c37caa64c0a7efeba","https://github.com/mcollina/msgpack5","https://github.com/mcollina/msgpack5/releases/tag/v6.1.0"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-5x5g-h9x8-2fh9","url":"https://osv.dev/vulnerability/GHSA-5x5g-h9x8-2fh9"}],"summary":"msgpack5: Many buffered values can exhaust the streaming decoder stack"}