OESA-2026-4060

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4060
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2026-4060
Upstream
Published
2026-09-25T01:27:53Z
Modified
2026-09-25T01:45:08Z
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
nodejs-js-yaml security update
Details

This is an implementation of YAML (YAML Ain't Markup Language), a human friendly data serialization language. It started as PyYAML port, and was completely rewritten from scratch. Now it's very fast, and supports the 1.2 spec.

Security Fix(es):

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2 and 4.3.2, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key <<. An attacker can alias a large sequence of empty mappings into many merge targets, causing O(N * K) processing while totalMergeKeys remains unchanged and the configured resource limit is never reached. A relatively small YAML document can therefore cause prolonged CPU consumption in applications that parse untrusted YAML, and merge processing is enabled by default on these release lines. This issue is fixed in versions 3.15.2 and 4.3.2.(CVE-2026-84375)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP4
nodejs-js-yaml

Package

Name
nodejs-js-yaml
Purl
pkg:rpm/openEuler/nodejs-js-yaml&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.10.0-3.oe2003sp4

Ecosystem specific 

{
    "noarch": [
        "nodejs-js-yaml-3.10.0-3.oe2003sp4.noarch.rpm"
    ],
    "src": [
        "nodejs-js-yaml-3.10.0-3.oe2003sp4.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json"
openEuler:22.03-LTS-SP4
nodejs-js-yaml

Package

Name
nodejs-js-yaml
Purl
pkg:rpm/openEuler/nodejs-js-yaml&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.10.0-3.oe2203sp4

Ecosystem specific 

{
    "noarch": [
        "nodejs-js-yaml-3.10.0-3.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "nodejs-js-yaml-3.10.0-3.oe2203sp4.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json"
openEuler:24.03-LTS-SP1
nodejs-js-yaml

Package

Name
nodejs-js-yaml
Purl
pkg:rpm/openEuler/nodejs-js-yaml&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.10.0-3.oe2403sp1

Ecosystem specific 

{
    "noarch": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp1.noarch.rpm"
    ],
    "src": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp1.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json"
openEuler:24.03-LTS-SP3
nodejs-js-yaml

Package

Name
nodejs-js-yaml
Purl
pkg:rpm/openEuler/nodejs-js-yaml&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.10.0-3.oe2403sp3

Ecosystem specific 

{
    "noarch": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp3.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json"
openEuler:24.03-LTS-SP4
nodejs-js-yaml

Package

Name
nodejs-js-yaml
Purl
pkg:rpm/openEuler/nodejs-js-yaml&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.10.0-3.oe2403sp4

Ecosystem specific 

{
    "noarch": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp4.noarch.rpm"
    ],
    "src": [
        "nodejs-js-yaml-3.10.0-3.oe2403sp4.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4060.json"