Express.js vulnerabilities and fixes

CVEs that mention Express.js, ranked by priority. 1 tracked.

Express.js has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-08-13. Highest priority: CVE-2026-49473 (score 41/100).

• CVE-2026-49473 HIGH 8.8 @cedar-policy/authorization-for-expressjs is an open-source Express.js middleware that integrates Cedar author

FAQ

How do I fix Express.js vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Express.js being exploited right now?

None of the tracked Express.js CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which Express.js CVE should I patch first?

CVE-2026-49473 currently ranks highest (41/100): @cedar-policy/authorization-for-expressjs is an open-source Express.js middleware that integrates Cedar author.

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