Devalue Before 5.9.3 Quadratic Expansion Denial Of Service Via Uneval

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Devalue Before 5.9.3 Quadratic Expansion Denial Of Service Via Uneval

www.vulncheck.com • November 8, 2026

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Multiple Denial of Service Vulnerabilities in Devalue Before 5.9.3 Three distinct denial of service vulnerabilities have been identified in the Devalue software, affecting versions 5.8.0 to 5.9.2. The vulnerabilities include a denial of service via stringifyAsync unhandled rejection (CWE-248), quadratic expansion via uneval, and a typed array allocation validation bypass via parse. These issues could allow attackers to disrupt service availability. No specific exploitation in the wild has been reported yet, but the vulnerabilities are considered serious. Users are advised to upgrade to version 5.9.3 or later, which addresses these vulnerabilities. The vulnerabilities were disclosed on November 8, 2026, and are detailed in GitHub Security Advisories. 46

Extracted Entities

Attack Types (1)

Denial of Service

Vulnerabilities (1)

Uneval Vulnerability