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fix(deps): [release-1.8] upgrade backstage packages to fix CVE-2026-24046#4640

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fix(deps): [release-1.8] upgrade backstage packages to fix CVE-2026-24046#4640
jonkoops wants to merge 1 commit intoredhat-developer:release-1.8from
jonkoops:cve-2026-24046

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@jonkoops
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Upgrades three Backstage packages to their closest patched versions to address CVE-2026-24046 (GHSA-rq6q-wr2q-7pgp), a symlink path traversal vulnerability in Scaffolder actions.

Package Old New
@backstage/backend-defaults 0.12.0 0.12.2
@backstage/plugin-scaffolder-backend 2.2.0 2.2.2
@backstage/plugin-scaffolder-node 0.11.0 0.11.2

This replaces the previous yarn patch: based mitigation with the official fix versions. Lockfile changes were applied using yarn-lockfile-surgeon (#4638) to resolve transitive dependencies to their minimum satisfying versions, keeping the diff minimal.

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The container image build workflow finished with status: cancelled.

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The container image build workflow finished with status: failure.

Upgrades @backstage/backend-defaults (0.12.0 -> 0.12.2),
@backstage/plugin-scaffolder-backend (2.2.0 -> 2.2.2), and
@backstage/plugin-scaffolder-node (0.11.0 -> 0.11.2) to address
symlink path traversal in Scaffolder actions (GHSA-rq6q-wr2q-7pgp).

Replaces the previous yarn patch-based mitigation with the official
fix versions. Lockfile changes were applied using yarn-lockfile-surgeon
to minimize transitive dependency impact.
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Image was built and published successfully. It is available at:

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