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fix(name): anchor loopback registry detection - #2314
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Subserial merged 2 commits intoJun 2, 2026
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2314 +/- ##
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Coverage 56.94% 56.94%
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Files 166 166
Lines 11369 11369
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Hits 6474 6474
Misses 4134 4134
Partials 761 761 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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Subserial
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Jun 2, 2026
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social4hyq
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Sep 20, 2026
crane 0.21.7 Created-by: HarmonybrewBot Commit-by: HarmonybrewBot Merged-by: HarmonybrewBot Description: Created by `brew bump` --- Created with `brew bump-formula-pr`.<details> <summary>release notes</summary> <pre>## What's Changed * tarball: return error instead of panicking on missing rootfs.diff_ids by @iahsanGill in google/go-containerregistry#2304 * gcrane: honor --platform flag in copy by @iahsanGill in google/go-containerregistry#2307 * mutate: verify layer digests in Extract and Time by @momenashrafff in google/go-containerregistry#2303 * tarball: close layer readers during Write by @nandbhat in google/go-containerregistry#2308 * build(deps): bump the actions group across 1 directory with 2 updates by @dependabot[bot] in google/go-containerregistry#2311 * build(deps): bump github.com/docker/cli from 29.4.3+incompatible to 29.5.2+incompatible in the go-deps group across 1 directory by @dependabot[bot] in google/go-containerregistry#2312 * BUGFIX: Fail with error when read exceeds maximum by @inteon in google/go-containerregistry#2328 * build(deps): bump the actions group across 1 directory with 2 updates by @dependabot[bot] in google/go-containerregistry#2327 * fix(name): anchor loopback registry detection by @rohan-patnaik in google/go-containerregistry#2314 * Reject symlinks in OCI layout blobs by @mosskappa in google/go-containerregistry#2306 * fix(crane): avoid creating export tar on pull failure by @Haihan-Jiang in google/go-containerregistry#2318 * feat(kubernetes): allow ignoring pull secrets by @rohan-patnaik in google/go-containerregistry#2315 * fix(name): preserve localhost registry references by @rohan-patnaik in google/go-containerregistry#2316 * pkg/registry: export ErrNotFound by @malt3 in google/go-containerregistry#2176 * pkg/registry: export RedirectError by @malt3 in google/go-containerregistry#2177 * build(deps): bump the go-deps group across 1 directory with 2 updates by @dependabot[bot] in google/go-containerregistry#2343 * build(deps): bump the actions group across 1 directory with 2 updates by @dependabot[bot] in google/go-containerregistry#2344 * fix: prevent SSRF in google.List() pagination by @tufstraka in google/go-containerregistry#2332 * internal/gzip: fix goroutine leak in ReadCloserLevel by @amarkdotdev in google/go-containerregistry#2347 * fix(transport): apply refreshed bearer token after cross-host redirect by @64johnlee in google/go-containerregistry#2337 * build(deps): bump the go-deps group across 3 directories with 4 updates by @dependabot[bot] in google/go-containerregistry#2348 * fix(tarball): normalize paths when matching files by @bstoll in google/go-containerregistry#2334 * transport: do not re-attach bearer token after cross-host redirect by @evilgensec in google/go-containerregistry#2349 * Bump CI go version to 1.26.4 by @Subserial in google/go-containerregistry#2350 ## New Contributors * @momenashrafff made their first contribution in google/go-containerregistry#2303 * @nandbhat made their first contribution in google/go-containerregistry#2308 * @inteon made their first contribution in google/go-containerregistry#2328 * @rohan-patnaik made their first contribution in google/go-containerregistry#2314 * @mosskappa made their first contribution in google/go-containerregistry#2306 * @Haihan-Jiang made their first contribution in google/go-containerregistry#2318 * @tufstraka made their first contribution in google/go-containerregistry#2332 * @amarkdotdev made their first contribution in google/go-containerregistry#2347 * @64johnlee made their first contribution in google/go-containerregistry#2337 * @bstoll made their first contribution in google/go-containerregistry#2334 **Full Changelog**: https://github.com/google/go-containerregistry/compare/v0.21.6...v0.21.7</pre> <p>View the full release notes at <a href="https://github.com/google/go-containerregistry/releases/tag/v0.21.7">https://github.com/google/go-containerregistry/releases/tag/v0.21.7</a>.</p> </details> <hr> See merge request: Harmonybrew/homebrew-core!11861
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Fixes #2313
Summary
This anchors the loopback registry checks used by
Registry.Scheme().Before this change, any registry hostname containing
127.0.0.1or::1as a substring could be treated as loopback and use plain HTTP. Now only the actual loopback forms match:127.0.0.1,127.0.0.1:<port>,::1, and[::1]:<port>.Why
Non-loopback registries like
127.0.0.1.evil.comor[2001:db8::1]:5000should keep the default HTTPS scheme. The old unanchored regexes matched those strings accidentally.Test plan
go test ./pkg/namego test ./pkg/...