Allocation of Resources Without Limits or Throttling Affecting com.fasterxml.jackson.core:jackson-core package, versions [,2.18.8)[2.19.0-rc1,2.21.4)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JAVA-COMFASTERXMLJACKSONCORE-18517159
- published4 Aug 2026
- disclosed21 Jul 2026
- credittonghuaroot (童话)
Introduced: 21 Jul 2026
NewCVE-2026-68494 (opens in a new tab)How to fix?
Upgrade com.fasterxml.jackson.core:jackson-core to version 2.18.8, 2.21.4 or higher.
Overview
com.fasterxml.jackson.core:jackson-core is a Core Jackson abstractions, basic JSON streaming API implementation
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the NonBlockingUtf8JsonParserBase file. An attacker can exhaust system memory by streaming JSON input in small chunks to the asynchronous parser, causing unbounded accumulation of digit characters in memory due to missing validation of number length during chunked parsing. This can lead to denial of service by overwhelming the application's memory resources.