[WIP] Fix the failing GitHub Actions workflow build Analyze the workflow logs, identify the root cause of the failure, and implement a fix. Job ID: 63270126575 Job URL: https://github.com/github/gh-aw/actions/runs/21912473820/job/63270126575#14979
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Remove unsafe GitHub expression from safe-output target field. The update-issue safe-output now defaults to the triggering issue instead of explicitly referencing github.event.issue.number, which was flagged as a template injection vulnerability. Also removed the GitHub expression from the prompt body to prevent potential template injection attacks. Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
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Pull request overview
This PR fixes a security vulnerability in the workflow generator by removing template injection risks caused by using user-controlled GitHub context data directly in YAML expressions.
Changes:
- Removed unsafe GitHub expression
${{ github.event.issue.number }}from safe-output configuration - Replaced unsafe GitHub expression in prompt body with generic descriptive text
- Updated compiled workflow lock file to reflect the security fixes
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| .github/workflows/workflow-generator.md | Removed template injection vulnerabilities by eliminating unsafe GitHub context expressions from safe-output target and prompt body |
| .github/workflows/workflow-generator.lock.yml | Updated compiled workflow to reflect security fixes and removed unsafe expressions from configuration and environment variables |
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Fix workflow compilation failure (Job ID 63270126575)
Analysis
The CI build was failing because workflow-generator.md contained template injection vulnerabilities:
target: "${{ github.event.issue.number }}"in safe-output configuration${{ github.event.issue.number }}in the prompt body.invalid.yml--validateflag, compilation returned error code 1 (147/148 workflows succeeded)Root Cause
User-controlled GitHub context data was being used directly in YAML expressions, creating potential template injection attack vectors.
Solution Applied
make agent-finishto ensure all tests passChanges Made
target: "${{ github.event.issue.number }}"fromupdate-issuesafe-output#${{ github.event.issue.number }}to(the triggering issue)Verification
The workflow now compiles without security warnings.
Original prompt
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