CVE-2026-68904 node-opcua - Denial of Service

node-opcua 2.0.0 to 2.170.0 contains a denial of service caused by repeated reconnection cycles due to server clock skew triggering BadInvalidTimestamp responses, letting remote attackers exhaust client resources, exploit requires default keepSessionAlive setting.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-400

Vendor fix

Update to version 2.170.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs