cassandra-5.0/5.0.6-r2: cve remediation

[octo-sts]

cassandra-5.0/5.0.6-r2: fix GHSA-gm62-rw4g-vrc4

Advisory data: https://github.com/wolfi-dev/advisories/blob/main/cassandra-5.0.advisories.yaml

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"Breadcrumbs" for this automated service

• Source Code: https://go/cve-remedy-automation-source
• Logs: https://go/cve-remedy-automation-logs
• Docs: (not provided yet)

Inspected git repositories: https://github.com/apache/cassandra@cassandra-5.0.6

[octo-sts]

📡 Build Failed: Network

curl: (22) The requested URL returned error: 404 - Failed to run command for OctoSTS token exchange

Build Details

Category	Details
Build System	Wolfi Linux melange
Failure Point	auth/github step in cassandra-5.0-iamguarded-compat subpackage pipeline

Root Cause Analysis 🔍

The OctoSTS service endpoint returned a 404 error when attempting to exchange a token for chainguard-dev/iamguarded-tools repository access. This indicates either the OctoSTS service is unavailable, the endpoint URL is incorrect, or the service account lacks proper permissions to access the token exchange service.

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🔍 Build failure fix suggestions

Found similar build failures that have been fixed in the past and analyzed them to suggest a fix:

Similar PRs with fixes

• envoy-1.35/1.35.6 package update #69353
• google-cloud-sdk - rework to support any python #69578
• prometheus-operator/0.84.1-r0: cve remediation #62441

Suggested Changes

File: cassandra-5.0.yaml

• modification at line 4 (package.epoch field)
  Original:

  epoch: 3 # GHSA-gm62-rw4g-vrc4

Replacement:

  epoch: 4 # OctoSTS authentication fix

Content:

Increment epoch to trigger fresh build and resolve OctoSTS 404 error

Click to expand fix analysis

Analysis

Looking at the similar fixes, I observe a consistent pattern: all three fixes involved epoch bumps (incrementing the epoch field) in response to 404 errors from OctoSTS service during iamguarded-compat builds. In Fix #0, the epoch remained 0 but the version was updated from 1.35.5 to 1.35.6. In Fix #1, the epoch was bumped from 0 to 1 with a CVE note. In Fix #2, the epoch was bumped from 0 to 1 with a CVE reference. The common thread is that these changes triggered new builds that resolved the OctoSTS authentication issues, likely because the service became available again or the build environment was refreshed.

Click to expand fix explanation

Explanation

The suggested fix involves incrementing the epoch from 3 to 4. This approach is based on the pattern observed in all three similar fixes where epoch bumps successfully resolved OctoSTS 404 errors. The 404 error indicates that the OctoSTS service endpoint is either temporarily unavailable or there's a transient authentication issue. By bumping the epoch, we trigger a completely fresh build in a new environment, which often resolves these temporary service availability issues. The OctoSTS service is used for GitHub token exchange in the iamguarded-compat subpackage, and these authentication services can have temporary outages or rate limiting that resolve with retry attempts in fresh environments.

Click to expand alternative approaches

Alternative Approaches

• Wait for the OctoSTS service to recover naturally and retry the build without changes
• Investigate if the service account permissions for 'chainguard-dev/iamguarded-tools' repository access need to be updated
• Check if the OctoSTS endpoint URL has changed and needs updating in the build infrastructure
• Remove the iamguarded-compat subpackage temporarily if it's not critical for the release

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