Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') Affecting tools.jackson.core:jackson-databind package, versions [3.0.0,3.1.6)[3.2.0,3.2.2)
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-TOOLSJACKSONCORE-19477043
- published1 Sept 2026
- disclosed1 Sept 2026
- creditwaydeshi
Introduced: 1 Sep 2026
NewCVE-2026-19032 (opens in a new tab)How to fix?
Upgrade tools.jackson.core:jackson-databind to version 3.1.6, 3.2.2 or higher.
Overview
Affected versions of this package are vulnerable to Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') through NioPathDeserializer in src/main/java/com/fasterxml/jackson/databind/ext/NioPathDeserializer.java. An attacker can force readValue() to resolve an attacker-controlled java.nio.file.Path URI by supplying a non-file scheme such as jar:, http:, s3:, or a custom provider scheme in untrusted JSON. That input reaches new URI(value) and then Path.of(uri), which falls back to ServiceLoader<FileSystemProvider> resolution and can invoke a matching provider’s getPath(uri) during deserialization. The result is unintended provider loading and provider-driven path handling inside the application, which can trigger denial of service or other side effects depending on what FileSystemProvider implementations are present on the classpath.