GHSA-vw5p-8cq8-m7mv

Suggest an improvement
Source
https://github.com/advisories/GHSA-vw5p-8cq8-m7mv
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-vw5p-8cq8-m7mv/GHSA-vw5p-8cq8-m7mv.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vw5p-8cq8-m7mv
Aliases
Published
2026-01-15T18:10:15Z
Modified
2026-02-03T03:17:35Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Devalue is vulnerable to denial of service due to memory exhaustion in devalue.parse
Details

Summary

Certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array.

Details

The parser's typed array hydration logic does not properly validate input before processing. Specially crafted inputs can cause disproportionate memory allocation or CPU usage on the receiving system.

Impact

This is a denial of service vulnerability affecting systems that use devalue.parse to handle data from potentially untrusted sources.

Affected systems should upgrade to patched versions immediately.

Database specific 
{
    "cwe_ids":  [
        "CWE-20",
        "CWE-405"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-01-15T18:10:15Z",
    "nvd_published_at":  "2026-01-15T19:16:05Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / devalue

Package

Name
devalue
View open source insights on deps.dev
Purl
pkg:npm/devalue

Affected ranges

Type
SEMVER
Events
Introduced
5.3.0
Fixed
5.6.2

Database specific

last_known_affected_version_range 
"<= 5.6.1"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-vw5p-8cq8-m7mv/GHSA-vw5p-8cq8-m7mv.json"