CVE-2026-116581
Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node's done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. This issue is fixed in version 1.6.8.
| CWE | CWE-835 CWE-1284 |
| Vendor | lxsmnsyc |
| Product | seroval |
| Published | Oct 26, 2026 |
Stay Ahead of the Next One
Get instant alerts for lxsmnsyc seroval
Be the first to know when new high vulnerabilities affecting lxsmnsyc seroval are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
lxsmnsyc / seroval
< 1.6.8