GHSA-r9w8-h9r3-54w4

Source

https://github.com/advisories/GHSA-r9w8-h9r3-54w4

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-r9w8-h9r3-54w4/GHSA-r9w8-h9r3-54w4.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-r9w8-h9r3-54w4

Downstream

CLSA (3)

Published

2026-10-01T15:15:56Z

Modified

2026-10-01T15:30:13Z

Severity

8.2 (High) CVSS_V4 - 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 CVSS Calculator

Summary

devalue: Custom ArrayBuffer revivers can bypass typed-array allocation validation

Details

Under very specific circumstances, parse could create massive ArrayBuffers with very small input. This required a malformed ArrayBuffer custom reviver.

Database specific

{
    "cwe_ids":  [
        "CWE-789",
        "CWE-843"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-01T15:15:56Z",
    "nvd_published_at":  null,
    "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

0 Unknown introduced version / All previous versions are affected

Fixed

5.9.3

Database specific

last_known_affected_version_range

"<= 5.9.2"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-r9w8-h9r3-54w4/GHSA-r9w8-h9r3-54w4.json"