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CVE-2021-30468: Apache CXF Denial of service vulnerability in parsing JSON via JsonMapObjectReaderWriter

A vulnerability in the JsonMapObjectReaderWriter of Apache CXF allows an attacker to submit malformed JSON to a web service, which results in the thread getting stuck in an infinite loop, consuming CPU indefinitely. This issue affects Apache CXF versions prior to 3.4.4; Apache CXF versions prior to 3.3.11.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This issue can let a malformed JSON request tie up an Apache CXF service thread in an infinite CPU loop. Business impact is availability: vulnerable services may slow down or become unavailable if attackers can reach affected JSON-processing endpoints. Exposure is most likely in applications or packaged platforms using affected Apache CXF versions to parse JSON for web services, especially externally reachable API endpoints. Downstream references from TomEE, Oracle, and NetApp suggest dependency exposure can exist through bundled software. Treat this as a targeted availability risk for services using Apache CXF. It is not documented here as actively exploited, but public-facing API services should be checked and updated promptly because the impact can be sustained CPU exhaustion. Mitigation focus: Upgrade Apache CXF to 3.4.4, 3.3.11, or a later supported release.; Check vendor advisories for packaged products that bundle Apache CXF.; Prioritize internet-facing JSON web services using affected CXF versions..

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CVE-2021-30468 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
14Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache CXFApache CXFListed
Weakness

CWE details

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CWE-400 · source CWE mapping

Uncontrolled Resource Consumption

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