VULN UPGRADE: pyyaml (minor → 5.4.1)

[campaigner-prod]

Summary: Critical-severity security update — 1 package upgraded (MINOR changes included)

Manifests changed:

• . (pip)

Updates

Package	From	To	Type	Vulnerabilities Fixed
pyyaml	5.3.1	5.4.1	minor	1 CRITICAL, 1 UNKNOWN

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Security Details

🚨 Critical & High Severity (1 fixed)

Package	CVE	Severity	Summary	Unsafe Version	Fixed In
pyyaml	GHSA-8q59-q68h-6hv4	CRITICAL	Improper Input Validation in PyYAML	5.3.1	5.4

ℹ️ Other Vulnerabilities (1)

Package	CVE	Severity	Summary	Unsafe Version	Fixed In
pyyaml	PYSEC-2021-142	unknown	-	5.3.1	5.4

⚠️ Dependencies that have Reached EOL (1)

Dependency	Unsafe Version	EOL Date	New Version	Path
pyyaml	5.3.1	-	5.4.1	requirements.txt

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Review Checklist

Enhanced review recommended for this update:

• Review changes for compatibility with your code
• Check release notes for breaking changes
• Run integration tests to verify service behavior
• Test in staging environment before production
• Monitor key metrics after deployment

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Update Mode: Vulnerability Remediation (Critical)

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