Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/lxsmnsyc/seroval/commit/cdcee3e3bc384ee844360844f8ea98fd2b275
- https://github.com/lxsmnsyc/seroval/releases/tag/[email protected]
- https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-wp97-x4hv-qvhp
FAQ
What is CVE-2026-116584?
CVE-2026-116584 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-116584?
CVE-2026-116584 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116584?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.