{"action":"Upgrade seroval to 1.4.1 or later.","affected":[{"fixed":"1.4.1","introduced":"0.2.0"}],"component":"seroval","cve_ids":["CVE-2026-23956"],"ecosystem":"npm","epss":0.00534,"exploited":false,"fixed_versions":["1.4.1"],"ghsa_id":"GHSA-hx9m-jf43-8ffr","id":"tcs_01M5KFWDT6ZB20FPKZZEJBN56A","modified_at":"2026-05-20T01:00:15.710504617Z","published_at":"2026-01-21T16:57:06Z","references":["https://osv.dev/vulnerability/GHSA-hx9m-jf43-8ffr","https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-hx9m-jf43-8ffr","https://nvd.nist.gov/vuln/detail/CVE-2026-23956","https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060","https://github.com/lxsmnsyc/seroval","https://github.com/lxsmnsyc/seroval/blob/v0.2.0/packages/seroval/src/index.ts#L90"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-hx9m-jf43-8ffr","url":"https://osv.dev/vulnerability/GHSA-hx9m-jf43-8ffr"}],"summary":"seroval affected by Denial of Service via RegExp serialization"}