{"schema":"threatline.record/2","record":{"id":"CVE-2026-104846","aliases":["GHSA-p6vx-979v-rg4c"],"summary":"Seroval: `fromJSON()` Promise thenable assimilation invokes plugin-produced callables (bypass of GHSA-mv8w-475r-vwqw)","details":"A fulfilled Promise node deserialized by `fromJSON()` can trigger unintended invocation of a plugin-produced callable through native ECMAScript thenable assimilation. This bypasses the type-confusion fix in `seroval@1.5.3` (GHSA-mv8w-475r-vwqw / CVE-2026-59940) and affects every plugin-capable release from `0.12.0` through the current `1.6.0`.","categories":["Libraries & packages"],"product":"seroval","vendor":"lxsmnsyc","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-p6vx-979v-rg4c","source_modified_at":"2026-10-05T23:40:44Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"seroval"},"range":">= 0.12.0, <= 1.6.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104846","source_modified_at":"2026-10-05T20:10:22.499Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"seroval","vendor":"lxsmnsyc","versions":[{"version":">= 0.12.0, < 1.6.2","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-p6vx-979v-rg4c","source_modified_at":"2026-10-06T00:00:08.435171324Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"seroval","purl":"pkg:npm/seroval"},"ranges":[{"events":[{"introduced":"0.12.0"},{"fixed":"1.6.2"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-p6vx-979v-rg4c","source_modified_at":"2026-10-05T23:40:44Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"seroval"},"version":"1.6.2"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-p6vx-979v-rg4c","source_modified_at":"2026-10-06T00:00:08.435171324Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"seroval","purl":"pkg:npm/seroval"},"version":"1.6.2"}],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00345,"percentile":0.26839,"score_date":"2026-10-23"},"published_at":"2026-10-02T15:59:45.802Z","modified_at":"2026-10-06T00:00:08.435171324Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-p6vx-979v-rg4c","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T23:40:44Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104846","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-05T20:10:22.499Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-p6vx-979v-rg4c","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-06T00:00:08.435171324Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104846","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-p6vx-979v-rg4c","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104846","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/lxsmnsyc/seroval/commit/f1ffcc96d259f9b5b3d71feb262b58240c90e7b7","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-p6vx-979v-rg4c","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-05T20:10:15.390924Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-06T00:00:08.435171324Z","content_hash":"cddd91012e3b5638b0cd7b00159aeedfc1dd77057cf93b7dfa6e796f29630ef1"}}