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vuln-cve/data/2026/59xxx/CVE-2026-59868.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-59868",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-07-07T15:41:53.607Z",
"datePublished": "2026-07-08T15:18:19.422Z",
"dateUpdated": "2026-07-09T13:42:54.035Z"
},
"containers": {
"cna": {
"title": "js-yaml: YAML merge-key chains can force quadratic CPU consumption",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"lang": "en",
"description": "CWE-407: Inefficient Algorithmic Complexity",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv"
},
{
"name": "https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1"
},
{
"name": "https://github.com/nodeca/js-yaml/releases/tag/5.2.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nodeca/js-yaml/releases/tag/5.2.0"
}
],
"affected": [
{
"vendor": "nodeca",
"product": "js-yaml",
"versions": [
{
"version": ">= 5.0.0, < 5.2.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-08T15:18:19.422Z"
},
"descriptions": [
{
"lang": "en",
"value": "js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in version 5.2.0."
}
],
"source": {
"advisory": "GHSA-g796-fgmg-93mv",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-09T13:41:56.104624Z",
"id": "CVE-2026-59868",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-09T13:42:54.035Z"
}
}
]
}
}