CVE-2026-54737

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Source

https://cve.org/CVERecord?id=CVE-2026-54737

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54737.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-54737

Aliases

GHSA-mj3g-7xcc-x4vh

Published

2026-07-31T17:48:42.670Z

Modified

2026-08-01T03:47:06.785817971Z

Severity

7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator

Summary

@phun-ky/defaults-deep Has a Prototype Pollution issue via Unsafe Recursive Property Merging

Details

@phun-ky/defaults-deep is a library like lodash defaultsDeep with array preservation and no lodash dependency. Prior to 2.0.5, defaultsDeep() recursively merges user-supplied objects without filtering proto, constructor, and prototype, allowing properties to be written to Object.prototype. This issue is fixed in version 2.0.5.

Database specific

{
    "cwe_ids": [
        "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54737.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/phun-ky/defaults-deep

Affected ranges

Type

GIT

Repo

https://github.com/phun-ky/defaults-deep

Events

Introduced

Fixed

f585c805d4a6763adef0cd05cc5e5d80b89a0dd6

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.0.5"
        }
    ]
}

Affected versions

1.*

1.1.0

1.1.1

1.1.10

1.1.11

1.1.12

1.1.13

1.1.14

1.1.15

1.1.16

1.1.17

1.1.18

1.1.19

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.1.7

1.1.8

1.1.9

2.*

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54737.json"