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uv's bundled CA store trusts an emSign root whose intermediate CA keys are compromised

🗓️ 20 Oct 2026 21:49:27Reported by Python Packaging AdvisoryType 
pypa
 pypa
🔗 github.com👁 4 Views

uv trusts a compromised emSign root CA in its vendored bundle, enabling MITM attacks.

Detection
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20 Oct 2026 21:55Current
5.8Medium risk
Vulners AI Score5.8
CVSS 49.1
4