CVE-2025-64718

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Source
https://cve.org/CVERecord?id=CVE-2025-64718
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64718.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-64718
Aliases
Downstream
Related
Published
2025-11-13T15:32:44.634Z
Modified
2026-02-07T02:53:52.415333Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
js-yaml has prototype pollution in merge (<<)
Details

js-yaml is a JavaScript YAML parser and dumper. In js-yaml before 4.1.1 and 3.14.2, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution (__proto__). All users who parse untrusted yaml documents may be impacted. The problem is patched in js-yaml 4.1.1 and 3.14.2. Users can protect against this kind of attack on the server by using node --disable-proto=delete or deno (in Deno, pollution protection is on by default).

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64718.json",
    "cwe_ids": [
        "CWE-1321"
    ]
}
References

Affected packages

Git / github.com/nodeca/js-yaml

Affected ranges

Type
GIT
Repo
https://github.com/nodeca/js-yaml
Events
Introduced
ee74ce4b4800282b2f23b776be7dc95dfe34db1c
Fixed
cc482e775913e6625137572a3712d2826170e53a
Database specific 
{
    "versions": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.1.1"
        }
    ]
}
Type
GIT
Repo
https://github.com/nodeca/js-yaml
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9963d366dfbde0c69722452bcd40b41e7e4160a0
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.14.2"
        }
    ]
}

Affected versions

0.*
0.1.0
0.2.0
0.2.1
0.2.2
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
1.*
1.0.0
1.0.1
1.0.2
1.0.3
2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.1.0
2.1.1
2.1.2
2.1.3
3.*
3.0.0
3.0.1
3.0.2
3.1.0
3.10.0
3.11.0
3.12.0
3.12.1
3.12.2
3.13.0
3.13.1
3.14.0
3.14.1
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.3.0
3.3.1
3.4.0
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.5.0
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.6.0
3.6.1
3.7.0
3.8.0
3.8.1
3.8.2
3.8.3
3.8.4
3.9.0
3.9.1
4.*
4.0.0
4.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64718.json"