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GHSA-9GMC-JQMH-3RVM Copier has a trust-prefix bypass via path traversal that runs tasks unprompted

🗓️ 19 Aug 2026 19:16:54Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Copier 9.5.0-9.15.1 trust check lacks path normalization, allowing path traversal to bypass the unsafe-feature gate and execute arbitrary template tasks unprompted.

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19 Aug 2026 19:30Current
6.7Medium risk
Vulners AI Score6.7
CVSS 48.8
EPSS0.00189
2