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Bump certifi to 2026.10.19 for the eMudhra CA compromise - #41

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ca-bundle-bumps-emudhra
Oct 21, 2026
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ca-bundle-bumps-emudhra

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Eight eMudhra intermediate CA private keys were recoverable from their certificates
(announced 2026-10-20, see https://emudhra.we-have-a-problem.com/). Anyone with those keys
can impersonate any TLS host to a client that still trusts the chains.

This job runs every 15 minutes and fetches nucleus.mozilla.org/rna/all-releases.json with
requests, whose trust store is certifi. The pinned certifi (2025.11.12) still trusts the affected
chains, so this bumps it to 2026.10.19, which distrusts them. Compiled with
uv pip compile --upgrade-package certifi, so nothing else moved.

The python:3.11-slim-bookworm base is pulled fresh on every run (docker build --pull) and
pip 24.2+ uses the system trust store, so the image side picks up Debian's fixed
ca-certificates on its own once the upstream tag is rebuilt.

Incident report: Mozilla Bugzilla #2083449. Companion PRs: mozilla/bedrock#17463,
mozmeao/springfield#1978, mozilla/nucleus#1246, mozmeao/basket#1827.

Drops the compromised eMudhra intermediates (https://emudhra.we-have-a-problem.com/) from the
trust store requests uses when fetching release data from Nucleus.
@stevejalim
stevejalim requested a balanced review from Copilot October 21, 2026 13:58

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Copilot wasn't able to review any files in this pull request. Check if the Files changed in this pull request are included in default exclusions.

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r+

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