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[GHSA-c8q4-9h32-2ww8] Spinnaker has uon-safe yaml deserialization, allowing RCE when using specific types #8088

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[GHSA-c8q4-9h32-2ww8] Spinnaker has uon-safe yaml deserialization, allowing RCE when using specific types #8088

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4 changes: 2 additions & 2 deletions advisories/github-reviewed/2026/06/GHSA-c8q4-9h32-2ww8/GHSA-c8q4-9h32-2ww8.json
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{
"schema_version": "1.4.0",
"id": "GHSA-c8q4-9h32-2ww8",
"modified": "2026-06-22T20:43:37Z",
"modified": "2026-06-22T20:43:39Z",
"published": "2026-06-22T20:43:37Z",
"aliases": [
"CVE-2026-44795"
],
"summary": "Spinnaker has uon-safe yaml deserialization, allowing RCE when using specific types",
"summary": "Spinnaker has unsafe yaml deserialization, allowing RCE when using specific types",
"details": "### Impact\nThere's an unsafe YAML processing vulnerability that bypasses safe deserialization. This impacts users when when performing:\n* CloudFormation deployments\n* CloudFoundry Baking\n\nThe usage of a non-safe constructor use allows arbitrary loading of Java classes leading to RCE.\n\n### Patches\n 2025.3.3, 2026.0.3 and 2025.4.4.\n\n### Workarounds\nDisable the CloudFormation system and cloudfoundry baking operations.\n\n### Resources\nJoin Spinnaker on Slack for more information!",
"severity": [
{
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