Memory Allocation with Excessive Size Value Affecting com.fasterxml.jackson.dataformat:jackson-dataformat-smile package, versions [2.9.0, 2.18.12)[2.19.0, 2.21.8)[2.22.0, 2.22.4)
Threat Intelligence
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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Test your applications- Snyk IDSNYK-JAVA-COMFASTERXMLJACKSONDATAFORMAT-21762812
- published28 Oct 2026
- disclosed28 Oct 2026
- creditapvxlab, Michael-JRead
Introduced: 28 Oct 2026
NewCVE-2026-104895 (opens in a new tab)How to fix?
Upgrade com.fasterxml.jackson.dataformat:jackson-dataformat-smile to version 2.18.12, 2.21.8, 2.22.4 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value n the _startRawBinary and _finishRawBinaryLen methods of the NonBlockingByteArrayParser class. An attacker can crash the processing thread with an OutOfMemoryError or a NegativeArraySizeException by sending a Smile message of about 10 bytes with a raw binary length that is very large or overflows, because the parser allocates a byte[] of that size before reading the body. Only applications that pass untrusted Smile data to the async (non-blocking) parser are affected, such as WebFlux, Vert.x, or Micronaut endpoints.