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https://issues.apache.org/jira/browse/KAFKA-21239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krishna Chidrawar updated KAFKA-21239:
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Summary: [CVE-2026-68497] [CVE-2026-68497] [jackson-databind] (was:
[CVE-2026-68497] [jackson-databind])
> [CVE-2026-68497] [CVE-2026-68497] [jackson-databind]
> ----------------------------------------------------
>
> Key: KAFKA-21239
> URL: https://issues.apache.org/jira/browse/KAFKA-21239
> Project: Kafka
> Issue Type: Bug
> Reporter: Krishna Chidrawar
> Priority: Major
>
> *Aqua Description :* 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.
> *Vendor Statement :* null
> *Vendor URL :* null
> *NVD URL :* [https://nvd.nist.gov/vuln/detail/CVE-2026-68497]
> *Fix Version :* 2.18.10, 2.21.6, 2.22.2
>
>
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