CVE-2026-116583Medium· 5.3▾ SunlitSeroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. From 1.6.0 until 1.6.11, the JavaScript-output APIs derive a typed array's constructor name from a property on the val…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. From 1.6.0 until 1.6.11, the JavaScript-output APIs derive a typed array's constructor name from a property on the value that can be replaced by an own constructor property. When application code copies untrusted properties onto a typed array and then passes it to serialize, serializeAsync, crossSerialize, crossSerializeAsync, crossSerializeStream, Serializer, or compileJSON, the attacker-controlled name is written as executable JavaScript and can run in the page receiving the output. This issue is fixed in version 1.6.11.
seroval >= 1.6.0, < 1.6.11Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-116582Medium· 4.7Seroval: Script injection through RegExp sources in serialized output
CVE-2026-116584High· 7.5Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length
CVE-2026-116581High· 7.5Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)
CVE-2026-116580High· 7.3Seroval: Deserialization invokes attacker-chosen callables: AsyncIteratorFactoryInstance calls source.on(listener) without type check
CVE-2026-104845High· 7.5Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities
CVE-2026-104846Critical· 9.8Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities