{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"2.165.0"}],"component":"node-opcua","cve_ids":["CVE-2026-54155"],"ecosystem":"npm","epss":0.00424,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-mq36-523m-x7vv","id":"tcs_01M5KG1DCKE4KAH5K6ADX4ZR85","modified_at":"2026-08-20T18:48:09.721933Z","published_at":"2026-08-20T18:35:33Z","references":["https://osv.dev/vulnerability/GHSA-mq36-523m-x7vv","https://github.com/node-opcua/node-opcua/security/advisories/GHSA-mq36-523m-x7vv","https://github.com/node-opcua/node-opcua"],"severity":{"label":"high","score":7.7},"sources":[{"source":"osv","source_id":"GHSA-mq36-523m-x7vv","url":"https://osv.dev/vulnerability/GHSA-mq36-523m-x7vv"}],"summary":"node-opcua missing nonce verification in UserNameIdentityToken authentication"}