236 lines
13 KiB
JSON
236 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-89425",
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"assignerOrgId": "36c7be3b-2937-45df-85ea-ca7133ea542c",
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"state": "PUBLISHED",
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"assignerShortName": "HeroDevs",
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"dateReserved": "2026-09-11T18:31:50.311Z",
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"datePublished": "2026-09-23T02:06:10.571Z",
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"dateUpdated": "2026-09-23T14:00:42.979Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "36c7be3b-2937-45df-85ea-ca7133ea542c",
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"shortName": "HeroDevs",
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"dateUpdated": "2026-09-23T02:06:10.571Z"
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},
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"title": "jackson-core: UTF8DataInputJsonParser._reportInvalidToken() does not honor maxErrorTokenLength, allowing unbounded StringBuilder growth",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-770",
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"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-400",
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"description": "CWE-400 Uncontrolled Resource Consumption",
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"type": "CWE"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "FasterXML",
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"product": "jackson-core",
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"collectionURL": "https://repo1.maven.org/maven2",
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"packageName": "com.fasterxml.jackson.core:jackson-core",
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"repo": "https://github.com/FasterXML/jackson-core",
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"programRoutines": [
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{
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"name": "com.fasterxml.jackson.core.json.UTF8DataInputJsonParser._reportInvalidToken"
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}
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],
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"versions": [
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{
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"status": "affected",
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"version": "2.8.0",
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"lessThanOrEqual": "2.18.10",
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"versionType": "maven"
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},
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{
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"status": "affected",
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"version": "2.19.0",
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"lessThanOrEqual": "2.21.6",
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"versionType": "maven"
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},
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{
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"status": "affected",
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"version": "2.22.0",
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"lessThanOrEqual": "2.22.2",
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"versionType": "maven"
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}
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],
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"defaultStatus": "unaffected"
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},
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{
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"vendor": "FasterXML",
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"product": "jackson-core",
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"collectionURL": "https://repo1.maven.org/maven2",
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"packageName": "tools.jackson.core:jackson-core",
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"repo": "https://github.com/FasterXML/jackson-core",
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"programRoutines": [
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{
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"name": "tools.jackson.core.json.UTF8DataInputJsonParser._reportInvalidToken"
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}
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],
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"versions": [
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{
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"status": "affected",
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"version": "3.0.0",
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"lessThanOrEqual": "3.1.6",
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"versionType": "maven"
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},
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{
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"status": "affected",
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"version": "3.2.0",
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"lessThanOrEqual": "3.2.2",
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"versionType": "maven"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "UTF8DataInputJsonParser._reportInvalidToken() in FasterXML jackson-core builds the offending-token text for its error message by appending Java identifier characters to a StringBuilder in a loop that has no upper bound. Unlike the three sibling parser implementations, including UTF8StreamJsonParser, it never consults ErrorReportConfiguration.getMaxErrorTokenLength() (default 256). A malformed token supplied to a parser created through JsonFactory.createParser(DataInput) is therefore accumulated in full. No StreamReadConstraints setting mitigates this: maxDocumentLength cannot be applied to DataInput sources at all, and maxStringLength does not cover this path because the accumulation bypasses ReadConstrainedTextBuffer. The reporter measured a 20,000,109-character exception message from a 20-million-character malformed token on the DataInput path, against 367 characters for identical input on the InputStream path. Scaling the payload drives the StringBuilder, which also incurs byte-to-char expansion and internal array doubling, to many times the raw payload size and can trigger OutOfMemoryError for the whole JVM. UTF8DataInputJsonParser was introduced in 2.8.0 together with createParser(DataInput); releases before 2.8.0 do not contain the affected class.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>UTF8DataInputJsonParser._reportInvalidToken() in FasterXML jackson-core builds the offending-token text for its error message by appending Java identifier characters to a StringBuilder in a loop that has no upper bound. Unlike the three sibling parser implementations, including UTF8StreamJsonParser, it never consults ErrorReportConfiguration.getMaxErrorTokenLength() (default 256). A malformed token supplied to a parser created through JsonFactory.createParser(DataInput) is therefore accumulated in full. No StreamReadConstraints setting mitigates this: maxDocumentLength cannot be applied to DataInput sources at all, and maxStringLength does not cover this path because the accumulation bypasses ReadConstrainedTextBuffer. The reporter measured a 20,000,109-character exception message from a 20-million-character malformed token on the DataInput path, against 367 characters for identical input on the InputStream path. Scaling the payload drives the StringBuilder, which also incurs byte-to-char expansion and internal array doubling, to many times the raw payload size and can trigger OutOfMemoryError for the whole JVM. UTF8DataInputJsonParser was introduced in 2.8.0 together with createParser(DataInput); releases before 2.8.0 do not contain the affected class.</p>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-7hhh-6rmp-j9qf",
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"name": "GHSA-7hhh-6rmp-j9qf",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://github.com/FasterXML/jackson-core/pull/1698",
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"name": "FasterXML/jackson-core#1698",
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"tags": [
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"patch"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
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"baseScore": 7.5,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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}
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "No StreamReadConstraints or ErrorReportConfiguration setting mitigates this issue on the affected code path. Where possible, avoid JsonFactory.createParser(DataInput) for attacker-supplied content and use createParser(InputStream), createParser(Reader) or a byte-array overload instead; those parser implementations enforce maxErrorTokenLength correctly. Otherwise, bound input size ahead of the parser and cap JVM heap so that a single request cannot exhaust process memory.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>No StreamReadConstraints or ErrorReportConfiguration setting mitigates this issue on the affected code path. Where possible, avoid JsonFactory.createParser(DataInput) for attacker-supplied content and use createParser(InputStream), createParser(Reader) or a byte-array overload instead; those parser implementations enforce maxErrorTokenLength correctly. Otherwise, bound input size ahead of the parser and cap JVM heap so that a single request cannot exhaust process memory.</p>"
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}
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]
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade to com.fasterxml.jackson.core:jackson-core 2.18.11, 2.21.7 or 2.22.3, or to tools.jackson.core:jackson-core 3.1.7 or 3.2.3. The 2.8.x through 2.17.x, 2.19.x, 2.20.x and 3.0.x lines received no fix on their own branch and are no longer maintained upstream; consumers of those lines must move forward to a maintained release.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Upgrade to com.fasterxml.jackson.core:jackson-core 2.18.11, 2.21.7 or 2.22.3, or to tools.jackson.core:jackson-core 3.1.7 or 3.2.3. The 2.8.x through 2.17.x, 2.19.x, 2.20.x and 3.0.x lines received no fix on their own branch and are no longer maintained upstream; consumers of those lines must move forward to a maintained release.</p>"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "manqingzhou",
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"type": "finder"
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}
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]
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-7hhh-6rmp-j9qf",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-23T13:54:51.050132Z",
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"id": "CVE-2026-89425",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-23T14:00:42.979Z"
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}
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}
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]
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}
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} |