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fix(security): stop the Linux build trusting the compromised eMudhra intermediates - #188
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…romised eMudhra intermediates Go 1.26.9 on Linux verifies chains itself and never checks revocation, so the Linux build accepted certificates minted through the eight eMudhra intermediates whose keys were recoverable. Go 1.26.10 distrusts them in crypto/x509. macOS and Windows defer to the OS verifier, which already refuses them.
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The title clearly describes the primary security change: updating the Linux build to stop trusting compromised eMudhra intermediates. |
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Review comments at @go.mod:
- Around line 5-6: Update the exact workflow pin referenced in SECURITY-NOTES.md
from 1.26.9 to 1.26.10 so it matches the go1.26.10 toolchain declaration.
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.github/workflows/catalog-drift.yml.github/workflows/ci.yml.github/workflows/desktop-release.ymlCHANGELOG.mdgo.mod
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #188 +/- ##
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+ Coverage 83.01% 83.05% +0.03%
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Files 33 33
Lines 5235 5235
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+ Hits 4346 4348 +2
+ Misses 588 587 -1
+ Partials 301 300 -1 🚀 New features to boost your workflow:
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Eight eMudhra (emSign) intermediate CAs had recoverable private keys and were revoked on 2026-10-18. Every release so far is built with Go 1.26.9 (the v0.21.2 Linux binary reports
go1.26.9). On Linux, Go verifies certificate chains itself and never checks revocation, so the Linux build accepts a certificate minted through those intermediates for any provider the collectors sign in to, with the user's password in the request.The fix:
go-version1.26.10 in CI, the release build and the catalog-drift check, plustoolchain go1.26.10ingo.modso a localwails buildgets it too. Go 1.26.10 distrusts the eight intermediates incrypto/x509, whatever the machine's own CA bundle holds.What each platform does, from a probe built with each Go version and run against https://dv-g3b-emudhra.we-have-a-problem.com and https://dv-g3b-aaa-emudhra.we-have-a-problem.com, hosts served through one of the compromised intermediates:
x509: no valid chains builtcertificate is revoked, from the OS verifiercertificate signed by unknown authority, from the OS verifiergithub.com returned 200 in every run. The app is a Wails 2 app, so the window is the OS webview (WKWebView, WebView2, WebKitGTK) using the OS trust store; it bundles no browser engine and no roots of its own.
Summary by CodeRabbit
Bug Fixes
Documentation