koa vulnerabilities and fixes

Recent CVEs affecting koa, with upgrade or downgrade steps. 5 tracked.

koa has 5 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 5. Most recent: 2026-02-26. Highest priority: CVE-2025-25200 (score 46/100).

• CVE-2025-62595 MEDIUM 4.3 UPGRADE Koa is expressive middleware for Node.js using ES2017 async functions
• CVE-2026-27959 HIGH 7.5 UPGRADE Koa is middleware for Node.js using ES2017 async functions
• CVE-2025-8129 LOW 3.5 UPGRADE A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0
• CVE-2025-32379 MEDIUM 5.0 UPGRADE Koa is expressive middleware for Node.js using ES2017 async functions
• CVE-2025-25200 HIGH 7.5 UPGRADE Koa is expressive middleware for Node.js using ES2017 async functions

FAQ

How do I fix koa 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 koa being exploited right now?

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

Which koa CVE should I patch first?

CVE-2025-25200 currently ranks highest (46/100): Koa is expressive middleware for Node.js using ES2017 async functions.

RSS feed for koa · ← Back to latest CVEs