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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-116584

Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length

Description

Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. From 1.4.1 until 1.6.8, fromJSON and fromCrossJSON do not require an array node's element list to be an actual array. A small crafted payload can supply an attacker-controlled length that determines memory allocation and decoder iterations independently of payload size, allowing an unauthenticated request to exhaust the process or block its thread. This issue is a residual bypass of the remediation for CVE-2026-23957. This issue is fixed in version 1.6.8.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

lxsmnsyc seroval

  • >= 1.4.1, < 1.6.8affected

References