copier vulnerabilities and fixes

Recent CVEs affecting copier, with upgrade or downgrade steps. 2 tracked.

copier has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-04-02. Highest priority: CVE-2026-34730 (score 30/100).

• CVE-2026-34730 MEDIUM 5.5 UPGRADE Copier is a library and CLI app for rendering project templates
• CVE-2026-34726 MEDIUM 4.4 UPGRADE Copier is a library and CLI app for rendering project templates

FAQ

How do I fix copier 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 copier being exploited right now?

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

Which copier CVE should I patch first?

CVE-2026-34730 currently ranks highest (30/100): Copier is a library and CLI app for rendering project templates.

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