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Update certifi after the eMudhra incident - #1476
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AlexWaygood wants to merge 3 commits into
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October 20, 2026 20:59
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The eMudhra incident compromised intermediate CA keys that could be used to impersonate HTTPS sites. certifi 2026.10.19 removes an emSign root that anchors the affected intermediates from its CA bundle.
Update the locked certifi version to 2026.10.19.
The Linux Python 3.15 job in this PR uses Python 3.15.0b1 and crashes while building PyYAML. The corresponding job in the uv update, #1477, uses Python 3.15.0 and passes. Merge #1477 first; updating this branch from main should then resolve the failure.
Codex prepared this update and investigated the CI failure.