PT-2026-110621 · Square · Squash

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CVE-2026-109391

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Publicado

2026-10-12

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Atualizado

2026-10-12

CVSS v3.1

8.1

Alta

VetorAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

Exploit

Correção

Deserialization of Untrusted Data

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Enumeração de Fraquezas

Identificadores relacionados

CVE-2026-109391

Produtos afetados

Squash