node-opcua: Unbounded nonce cache enables unauthenticated heap exhaustion DoS
High-risk advisory
CVE-2026-54156
Summary
node-opcua: Unbounded nonce cache enables unauthenticated heap exhaustion DoS
Why it matters
GitHub has published a reviewed security advisory for node-opcua. Prioritize it with other application dependency updates.
Operator check
Check whether node-opcua is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.