devalue: Repeated primitive strings cause quadratic expansion in uneval
Under very constrained circumstances, data that was parsed and then passed to uneval could turn a small payload into a very large serialized string.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | devalue | < 5.9.3 | 5.9.3 |
References
- CVSS vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-400, CWE-409- Platform
- npm
- Package
devalue- Disclosed
- 01.10.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mcm9-63f2-9j32 - CC BY 4.0
Vulnerability history: devalue
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 16
- First → latest
- 08.2025 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 8
- Medium 4
- Low 4
Disclosures per year
- 2025: 1
- 2026: 15
-
devalue: Repeated primitive strings cause quadratic expansion in uneval this entry
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