Vulnerability-Lookup

CVE-2026-68497 (GCVE-0-2026-68497)

Vulnerability from cvelistv5 – Published: 2026-09-11 15:49 – Updated: 2026-09-11 16:32

Title

jackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of service

Summary

jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core's StreamReadConstraints.maxNumberLength guard never applies; jackson's own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server's worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 16:26 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

HeroDevs mitre root

References

3 references

URL	Tags
https://github.com/FasterXML/jackson-databind/sec…	third-party-advisory
https://github.com/FasterXML/jackson-databind/pull/6127	patchissue-tracking
https://github.com/FasterXML/jackson-databind/com…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
FasterXML	jackson-databind	Affected: 2.0.0 , < 2.18.10 (maven) Affected: 2.19.0 , < 2.21.6 (maven) Affected: 2.22.0 , < 2.22.2 (maven)	guessed
FasterXML	jackson-databind	Affected: 3.0.0 , < 3.1.6 (maven) Affected: 3.2.0 , < 3.2.2 (maven)	guessed

Date Public

2026-08-06 04:00

Credits

waydeshi pjfanning

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-68497",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-11T16:26:23.881034Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-11T16:32:46.146Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "com.fasterxml.jackson.core:jackson-databind",
          "product": "jackson-databind",
          "programFiles": [
            "src/main/java/com/fasterxml/jackson/databind/ext/CoreXMLDeserializers.java"
          ],
          "programRoutines": [
            {
              "name": "com.fasterxml.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize"
            }
          ],
          "repo": "https://github.com/FasterXML/jackson-databind",
          "vendor": "FasterXML",
          "versions": [
            {
              "lessThan": "2.18.10",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "2.21.6",
              "status": "affected",
              "version": "2.19.0",
              "versionType": "maven"
            },
            {
              "lessThan": "2.22.2",
              "status": "affected",
              "version": "2.22.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "tools.jackson.core:jackson-databind",
          "product": "jackson-databind",
          "programFiles": [
            "src/main/java/tools/jackson/databind/ext/CoreXMLDeserializers.java"
          ],
          "programRoutines": [
            {
              "name": "tools.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize"
            }
          ],
          "repo": "https://github.com/FasterXML/jackson-databind",
          "vendor": "FasterXML",
          "versions": [
            {
              "lessThan": "3.1.6",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "3.2.2",
              "status": "affected",
              "version": "3.2.0",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "waydeshi"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "pjfanning"
        }
      ],
      "datePublic": "2026-08-06T04:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003ejackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.\u003c/p\u003e"
            }
          ],
          "value": "jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "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:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T15:49:30.366Z",
        "orgId": "36c7be3b-2937-45df-85ea-ca7133ea542c",
        "shortName": "HeroDevs"
      },
      "references": [
        {
          "name": "GHSA-q4xh-88c3-wmh7",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7"
        },
        {
          "name": "FasterXML/jackson-databind#6127",
          "tags": [
            "patch",
            "issue-tracking"
          ],
          "url": "https://github.com/FasterXML/jackson-databind/pull/6127"
        },
        {
          "name": "Fix commit (2.x line, forward-merged to the 2.21, 2.22 and 3.x branches)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade to jackson-databind 2.18.10, 2.21.6, 2.22.2 (com.fasterxml.jackson.core) or 3.1.6, 3.2.2 (tools.jackson.core). The fix applies the same validate-length-then-parse idiom already used by NumberDeserializers, calling StreamReadConstraints length validation on the raw string before delegating to DatatypeFactory. The guard deliberately does not extend to javax.xml.namespace.QName, whose local parts may legitimately be long.\u003c/p\u003e"
            }
          ],
          "value": "Upgrade to jackson-databind 2.18.10, 2.21.6, 2.22.2 (com.fasterxml.jackson.core) or 3.1.6, 3.2.2 (tools.jackson.core). The fix applies the same validate-length-then-parse idiom already used by NumberDeserializers, calling StreamReadConstraints length validation on the raw string before delegating to DatatypeFactory. The guard deliberately does not extend to javax.xml.namespace.QName, whose local parts may legitimately be long."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-29T03:29:00.000Z",
          "value": "Fix merged upstream (FasterXML/jackson-databind#6127)"
        },
        {
          "lang": "en",
          "time": "2026-08-06T04:00:00.000Z",
          "value": "CVE ID disclosed publicly in upstream release notes for #6127"
        },
        {
          "lang": "en",
          "time": "2026-08-21T18:25:00.000Z",
          "value": "GitHub Security Advisory GHSA-q4xh-88c3-wmh7 published by the maintainer"
        }
      ],
      "title": "jackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of service",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAvoid binding javax.xml.datatype.Duration and javax.xml.datatype.XMLGregorianCalendar fields directly from untrusted JSON. Where such fields are required, impose a maximum request body size and a maximum string length at the transport layer, or bind the value as a String, length-check it, and convert it in application code.\u003c/p\u003e"
            }
          ],
          "value": "Avoid binding javax.xml.datatype.Duration and javax.xml.datatype.XMLGregorianCalendar fields directly from untrusted JSON. Where such fields are required, impose a maximum request body size and a maximum string length at the transport layer, or bind the value as a String, length-check it, and convert it in application code."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36c7be3b-2937-45df-85ea-ca7133ea542c",
    "assignerShortName": "HeroDevs",
    "cveId": "CVE-2026-68497",
    "datePublished": "2026-09-11T15:49:30.366Z",
    "dateReserved": "2026-07-30T15:20:37.473Z",
    "dateUpdated": "2026-09-11T16:32:46.146Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-68497",
      "date": "2026-09-13",
      "epss": "0.00581",
      "percentile": "0.45915"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-68497\",\"sourceIdentifier\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"published\":\"2026-09-11T16:17:39.610\",\"lastModified\":\"2026-09-11T17:17:46.393\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.\"}],\"affected\":[{\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"affectedData\":[{\"vendor\":\"FasterXML\",\"product\":\"jackson-databind\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://repo.maven.apache.org/maven2\",\"packageName\":\"com.fasterxml.jackson.core:jackson-databind\",\"programFiles\":[\"src/main/java/com/fasterxml/jackson/databind/ext/CoreXMLDeserializers.java\"],\"programRoutines\":[{\"name\":\"com.fasterxml.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize\"}],\"repo\":\"https://github.com/FasterXML/jackson-databind\",\"versions\":[{\"version\":\"2.0.0\",\"lessThan\":\"2.18.10\",\"versionType\":\"maven\",\"status\":\"affected\"},{\"version\":\"2.19.0\",\"lessThan\":\"2.21.6\",\"versionType\":\"maven\",\"status\":\"affected\"},{\"version\":\"2.22.0\",\"lessThan\":\"2.22.2\",\"versionType\":\"maven\",\"status\":\"affected\"}]},{\"vendor\":\"FasterXML\",\"product\":\"jackson-databind\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://repo.maven.apache.org/maven2\",\"packageName\":\"tools.jackson.core:jackson-databind\",\"programFiles\":[\"src/main/java/tools/jackson/databind/ext/CoreXMLDeserializers.java\"],\"programRoutines\":[{\"name\":\"tools.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize\"}],\"repo\":\"https://github.com/FasterXML/jackson-databind\",\"versions\":[{\"version\":\"3.0.0\",\"lessThan\":\"3.1.6\",\"versionType\":\"maven\",\"status\":\"affected\"},{\"version\":\"3.2.0\",\"lessThan\":\"3.2.2\",\"versionType\":\"maven\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-11T16:26:23.881034Z\",\"id\":\"CVE-2026-68497\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"},{\"lang\":\"en\",\"value\":\"CWE-1333\"}]}],\"references\":[{\"url\":\"https://github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd\",\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\"},{\"url\":\"https://github.com/FasterXML/jackson-databind/pull/6127\",\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\"},{\"url\":\"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7\",\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\"},{\"url\":\"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-68497\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-11T16:26:23.881034Z\"}}}], \"references\": [{\"url\": \"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-11T16:28:30.398Z\"}}], \"cna\": {\"title\": \"jackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of service\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"waydeshi\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"pjfanning\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/FasterXML/jackson-databind\", \"vendor\": \"FasterXML\", \"product\": \"jackson-databind\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.0.0\", \"lessThan\": \"2.18.10\", \"versionType\": \"maven\"}, {\"status\": \"affected\", \"version\": \"2.19.0\", \"lessThan\": \"2.21.6\", \"versionType\": \"maven\"}, {\"status\": \"affected\", \"version\": \"2.22.0\", \"lessThan\": \"2.22.2\", \"versionType\": \"maven\"}], \"packageName\": \"com.fasterxml.jackson.core:jackson-databind\", \"programFiles\": [\"src/main/java/com/fasterxml/jackson/databind/ext/CoreXMLDeserializers.java\"], \"collectionURL\": \"https://repo.maven.apache.org/maven2\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"com.fasterxml.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize\"}]}, {\"repo\": \"https://github.com/FasterXML/jackson-databind\", \"vendor\": \"FasterXML\", \"product\": \"jackson-databind\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.0.0\", \"lessThan\": \"3.1.6\", \"versionType\": \"maven\"}, {\"status\": \"affected\", \"version\": \"3.2.0\", \"lessThan\": \"3.2.2\", \"versionType\": \"maven\"}], \"packageName\": \"tools.jackson.core:jackson-databind\", \"programFiles\": [\"src/main/java/tools/jackson/databind/ext/CoreXMLDeserializers.java\"], \"collectionURL\": \"https://repo.maven.apache.org/maven2\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"tools.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-29T03:29:00.000Z\", \"value\": \"Fix merged upstream (FasterXML/jackson-databind#6127)\"}, {\"lang\": \"en\", \"time\": \"2026-08-06T04:00:00.000Z\", \"value\": \"CVE ID disclosed publicly in upstream release notes for #6127\"}, {\"lang\": \"en\", \"time\": \"2026-08-21T18:25:00.000Z\", \"value\": \"GitHub Security Advisory GHSA-q4xh-88c3-wmh7 published by the maintainer\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to jackson-databind 2.18.10, 2.21.6, 2.22.2 (com.fasterxml.jackson.core) or 3.1.6, 3.2.2 (tools.jackson.core). The fix applies the same validate-length-then-parse idiom already used by NumberDeserializers, calling StreamReadConstraints length validation on the raw string before delegating to DatatypeFactory. The guard deliberately does not extend to javax.xml.namespace.QName, whose local parts may legitimately be long.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUpgrade to jackson-databind 2.18.10, 2.21.6, 2.22.2 (com.fasterxml.jackson.core) or 3.1.6, 3.2.2 (tools.jackson.core). The fix applies the same validate-length-then-parse idiom already used by NumberDeserializers, calling StreamReadConstraints length validation on the raw string before delegating to DatatypeFactory. The guard deliberately does not extend to javax.xml.namespace.QName, whose local parts may legitimately be long.\u003c/p\u003e\", \"base64\": false}]}], \"datePublic\": \"2026-08-06T04:00:00.000Z\", \"references\": [{\"url\": \"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7\", \"name\": \"GHSA-q4xh-88c3-wmh7\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/FasterXML/jackson-databind/pull/6127\", \"name\": \"FasterXML/jackson-databind#6127\", \"tags\": [\"patch\", \"issue-tracking\"]}, {\"url\": \"https://github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd\", \"name\": \"Fix commit (2.x line, forward-merged to the 2.21, 2.22 and 3.x branches)\", \"tags\": [\"patch\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Avoid binding javax.xml.datatype.Duration and javax.xml.datatype.XMLGregorianCalendar fields directly from untrusted JSON. Where such fields are required, impose a maximum request body size and a maximum string length at the transport layer, or bind the value as a String, length-check it, and convert it in application code.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAvoid binding javax.xml.datatype.Duration and javax.xml.datatype.XMLGregorianCalendar fields directly from untrusted JSON. Where such fields are required, impose a maximum request body size and a maximum string length at the transport layer, or bind the value as a String, length-check it, and convert it in application code.\u003c/p\u003e\", \"base64\": false}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003ejackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1333\", \"description\": \"CWE-1333 Inefficient Regular Expression Complexity\"}]}], \"providerMetadata\": {\"orgId\": \"36c7be3b-2937-45df-85ea-ca7133ea542c\", \"shortName\": \"HeroDevs\", \"dateUpdated\": \"2026-09-11T15:49:30.366Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-68497\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-11T16:32:46.146Z\", \"dateReserved\": \"2026-07-30T15:20:37.473Z\", \"assignerOrgId\": \"36c7be3b-2937-45df-85ea-ca7133ea542c\", \"datePublished\": \"2026-09-11T15:49:30.366Z\", \"assignerShortName\": \"HeroDevs\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-68497

Vulnerability from fkie_nvd - Published: 2026-09-11 16:17 - Updated: 2026-09-11 17:17

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	36c7be3b-2937-45df-85ea-ca7133ea542c	https://github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd
	36c7be3b-2937-45df-85ea-ca7133ea542c	https://github.com/FasterXML/jackson-databind/pull/6127
	36c7be3b-2937-45df-85ea-ca7133ea542c	https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "com.fasterxml.jackson.core:jackson-databind",
          "product": "jackson-databind",
          "programFiles": [
            "src/main/java/com/fasterxml/jackson/databind/ext/CoreXMLDeserializers.java"
          ],
          "programRoutines": [
            {
              "name": "com.fasterxml.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize"
            }
          ],
          "repo": "https://github.com/FasterXML/jackson-databind",
          "vendor": "FasterXML",
          "versions": [
            {
              "lessThan": "2.18.10",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "2.21.6",
              "status": "affected",
              "version": "2.19.0",
              "versionType": "maven"
            },
            {
              "lessThan": "2.22.2",
              "status": "affected",
              "version": "2.22.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "tools.jackson.core:jackson-databind",
          "product": "jackson-databind",
          "programFiles": [
            "src/main/java/tools/jackson/databind/ext/CoreXMLDeserializers.java"
          ],
          "programRoutines": [
            {
              "name": "tools.jackson.databind.ext.CoreXMLDeserializers.Std._deserialize"
            }
          ],
          "repo": "https://github.com/FasterXML/jackson-databind",
          "vendor": "FasterXML",
          "versions": [
            {
              "lessThan": "3.1.6",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "3.2.2",
              "status": "affected",
              "version": "3.2.0",
              "versionType": "maven"
            }
          ]
        }
      ],
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core\u0027s StreamReadConstraints.maxNumberLength guard never applies; jackson\u0027s own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server\u0027s worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2."
    }
  ],
  "id": "CVE-2026-68497",
  "lastModified": "2026-09-11T17:17:46.393",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "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:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-68497",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-11T16:26:23.881034Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-11T16:17:39.610",
  "references": [
    {
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "url": "https://github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd"
    },
    {
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "url": "https://github.com/FasterXML/jackson-databind/pull/6127"
    },
    {
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-q4xh-88c3-wmh7"
    }
  ],
  "sourceIdentifier": "36c7be3b-2937-45df-85ea-ca7133ea542c",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-68497 (GCVE-0-2026-68497)

FKIE_CVE-2026-68497

Tags

Sightings

Nomenclature