Asymmetric Resource Consumption (Amplification) in devalue - CVE-2026-22774
Published: April 24, 2026
Vulnerability identifier: #VU127518
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-22774
CWE-ID: CWE-405
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Rich Harris
Affected software:
devalue
devalue
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in devalue.parse typed array hydration logic when parsing externally supplied data. A remote attacker can send specially crafted input to cause a denial of service.
This affects applications that use devalue.parse on untrusted input.
How to mitigate CVE-2026-22774
Install security update from vendor's website.