MediumFix available
DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator
Type: advisorySources: OSV
CVE-2026-83557 affects multiple packages. DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator. See references for individual vulnerability details.
- Products
- apache-nifi, gradle, keycloak, spark, wildfly, wso2am
- Affected versions
- Not specified
- Fixed versions
- 2.10.0-r9, 26.7.2-r2, 3.5.9-r3, 39.0.1-r9, 4.7.0-r2, 8.14.5-r2
- CVEs
- CVE-2026-83557
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:52 UTC · Revision 1
Source evidence
DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator
core-osv · Original sourcePublished 7 Oct 2026, 00:36 UTC
CVE-2026-83557 affects multiple packages. DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator. See references for individual vulnerability details.
osv:CLEANSTART-2026-LT75275
apache-nifi
Fixed versions: 2.10.0-r9
gradle
Fixed versions: 8.14.5-r2
keycloak
Fixed versions: 26.7.2-r2
spark
Fixed versions: 3.5.9-r3
wildfly
Fixed versions: 39.0.1-r9
wso2am
Fixed versions: 4.7.0-r2
Complete source record
{
"id": "a463a1e1f160031db14591a952ce752f6c45dca6f64c165cbf5f26f2d1b3e43b",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-LT75275",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator",
"summary": "CVE-2026-83557 affects multiple packages. DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-LT75275",
"products": [
{
"name": {
"value": "apache-nifi",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.10.0-r9",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gradle",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.14.5-r2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "keycloak",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "26.7.2-r2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.9-r3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "wildfly",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "39.0.1-r9",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "wso2am",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.7.0-r2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "CLEANSTART-2026-LT75275",
"aliases": [
"CLEANSTART-2026-LT75275"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.10.0-r9"
}
]
}
],
"package": {
"name": "apache-nifi",
"purl": "pkg:apk/cleanstart/apache-nifi",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-LT75275.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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{
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],
"package": {
"name": "gradle",
"purl": "pkg:apk/cleanstart/gradle?arch=noarch",
"ecosystem": "CleanStart"
},
"database_specific": {
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},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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{
"fixed": "26.7.2-r2"
}
]
}
],
"package": {
"name": "keycloak",
"purl": "pkg:apk/cleanstart/keycloak?arch=noarch",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-LT75275.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.9-r3"
}
]
}
],
"package": {
"name": "spark",
"purl": "pkg:apk/cleanstart/spark",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-LT75275.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "39.0.1-r9"
}
]
}
],
"package": {
"name": "wildfly",
"purl": "pkg:apk/cleanstart/wildfly",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-LT75275.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.7.0-r2"
}
]
}
],
"package": {
"name": "wso2am",
"purl": "pkg:apk/cleanstart/wso2am",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-LT75275.json"
}
}
],
"modified": "2026-10-08T16:47:29.341415417Z",
"provider": "osv",
"upstream": [
"CVE-2026-83557"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-LT75275.json",
"https://osv.dev/vulnerability/CVE-2026-83557",
"https://nvd.nist.gov/vuln/detail/CVE-2026-83557"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-83557",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 103232,
"published_at": "2026-10-07T00:36:22.879+00:00"
}