Vulnerability-Lookup

RHSA-2026:73521

Vulnerability from csaf_redhat - Published: 2026-09-29 19:57 - Updated: 2026-10-01 11:41

Summary

Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update

Severity

Important

Notes

Topic: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Security fix(es): * jackson-databind: CPU DoS via unbounded numeric parsing (CVE-2026-68497) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-68497

A flaw was found in jackson-databind. An unauthenticated attacker can trigger a denial of service (DoS) by exploiting an unbounded numeric parse vulnerability. This occurs during the deserialization of `javax.xml.datatype.Duration` or `javax.xml.datatype.XMLGregorianCalendar` fields from JSON strings, where the system processes arbitrarily long numeric components. This can lead to high CPU utilization, potentially saturating server worker threads and making the service unavailable.

7.5 (High)


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

CWE-400 - Uncontrolled Resource Consumption

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:230efa56bab822fa630a65d74cd4b5af0e593b42c21c487800802ec3d459cba8_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:30e55f9fb650606a8545d965ece1a40950edfe5f3b7a23a3d8ac0248ce4ee551_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:8ac34779962d720f440236f54b6a5446d04a941ac88b1ea518e71082d20a748b_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:e6e5049aa00d9a46f29907d125d1c8bad860e12ca2788d8bac9621a995a47ef1_arm64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

11 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:73521	self
https://access.redhat.com/security/cve/CVE-2026-68497	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-68497	self
https://bugzilla.redhat.com/show_bug.cgi?id=2531964	external
https://www.cve.org/CVERecord?id=CVE-2026-68497	external
https://nvd.nist.gov/vuln/detail/CVE-2026-68497	external
https://github.com/FasterXML/jackson-databind/com…	external
https://github.com/FasterXML/jackson-databind/pull/6127	external
https://github.com/FasterXML/jackson-databind/sec…	external

JSON

To clipboard

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      "ids": [
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          "title": "Vulnerability description"
        },
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          "text": "com.fasterxml.jackson.core/jackson-databind: tools.jackson.core/jackson-databind: jackson-databind: CPU Denial of Service via unbounded numeric parsing",
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          "title": "Statement"
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        {
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "details": "Upgrade jackson-databind to 2.18.10, 2.21.6, 2.22.2, or later fixed releases as applicable. Until updated, restrict untrusted JSON input size and complexity.",
          "product_ids": [
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:230efa56bab822fa630a65d74cd4b5af0e593b42c21c487800802ec3d459cba8_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:30e55f9fb650606a8545d965ece1a40950edfe5f3b7a23a3d8ac0248ce4ee551_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:8ac34779962d720f440236f54b6a5446d04a941ac88b1ea518e71082d20a748b_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:e6e5049aa00d9a46f29907d125d1c8bad860e12ca2788d8bac9621a995a47ef1_arm64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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"
          },
          "products": [
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:230efa56bab822fa630a65d74cd4b5af0e593b42c21c487800802ec3d459cba8_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:30e55f9fb650606a8545d965ece1a40950edfe5f3b7a23a3d8ac0248ce4ee551_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:8ac34779962d720f440236f54b6a5446d04a941ac88b1ea518e71082d20a748b_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:e6e5049aa00d9a46f29907d125d1c8bad860e12ca2788d8bac9621a995a47ef1_arm64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "com.fasterxml.jackson.core/jackson-databind: tools.jackson.core/jackson-databind: jackson-databind: CPU Denial of Service via unbounded numeric parsing"
    }
  ]
}

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 Scorecard

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
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)
FasterXML	jackson-databind	Affected: 3.0.0 , < 3.1.6 (maven) Affected: 3.2.0 , < 3.2.2 (maven)

Date Public

2026-08-06 04:00

Credits

waydeshi pjfanning

Show details on NVD website

JSON

To clipboard

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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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

RHSA-2026:73521

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

Tags

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Nomenclature

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