Square Squash vulnerabilities

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Published CVEs affecting Square Squash: 1 record(s), with affected versions and fixes.

CVE-2026-109391 High · 8.1 CWE-502 Oct 12, 2026

Square Squash through commit e73f280 Unauthenticated YAML Deserialization via Symbolication API

Square Squash through commit e73f280 contains an insecure deserialization vulnerability that allows unauthenticated attackers to store crafted YAML via the POST /api/1.0/symbolication endpoint. When occurrences referencing the attacker-controlled symbolication UUID are symbolicated, the stored values are passed to YAML.load with SafeYAML in unsafe mode, enabling arbitrary Ruby object deserialization and potential code execution.