Affected by Helm MaxDecompressedFileSize

[gmoirod]

Recently updated flux to v2.6.4 and got helm-controller v1.3.0.
This version seems affected by an issue with Helm v3.17.3 : helm/helm#30738

Resulting behavior is I am unable to reconcile an existing HelmRelease pointing to Helm Chart containing too large files.
This update breaks exisiting deployments.

  - lastTransitionTime: "2025-07-17T06:01:47Z"
    message: 'Could not load chart: decompressed chart file "xxxxxxxxxxxxxxxx/.cache/helm/repository/bitnami-index.yaml" is larger than the maximum file size 5242880'
    observedGeneration: 4
    reason: ArtifactFailed
    status: "False"
    type: Ready

This is related to #1204

[gmoirod]

Only way to prevent that is to downgrade to FluxCD v2.5.1, last one to use helm-controller v1.2.0 (using Helm 3.17.1).
To downgrade from 2.6.4 to 2.5.1, I had to delete CRD source.toolkit.fluxcd.io/ocirepositories which has been promoted to v1 since. Fortunately, I had no resource ocirepositories.

[matheuscscp]

Just a note on this issue, as described in helm/helm#30738 this behavior is due to Helm fixing CVEs