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CVE-2026-19032— jackson-databind resolves attacker-controlled URI schemes when deserializing java.nio.file.Path

Quick assessment

Affected
FasterXML jackson-databind
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FasterXML jackson-databind是FasterXML组织开源的一个具有数据绑定功能的组件。 FasterXML jackson-databind存在安全漏洞，该漏洞源于对java.nio.file.Path的反序列化器未限制URI方案，攻击者可通过不受信任的JSON构造URI，进而选择并驱动任意已注册的FileSystemProvider，同时强制加载提供者类，可能导致拒绝服务。受影响版本包括：2.8.0至2.18.10之前版本、2.19.0至2.21.6之前版本、2.22.0至2.2

CVSS 5.3 · Medium EPSS 0.57% · P47

Affected Version Matrix 5

VendorProduct Version RangeStatus
FasterXML jackson-databind 2.8.0< 2.18.10 affected
2.19.0< 2.21.6 affected
2.22.0< 2.22.2 affected
3.0.0< 3.1.6 affected
3.2.0< 3.2.2 affected
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I. Basic Information for CVE-2026-19032

Vulnerability Information
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Vulnerability Title
jackson-databind resolves attacker-controlled URI schemes when deserializing java.nio.file.Path
Source: CVE Program / CVE List V5
Vulnerability Description
jackson-databind's deserializer for java.nio.file.Path resolves an attacker-supplied URI without restricting the URI scheme. In JDKFromStringDeserializer.NioPathHelper.deserialize, a string bound from untrusted JSON is passed to new URI(value) and then to Path.of(uri). When that throws FileSystemNotFoundException, the code enumerates ServiceLoader<FileSystemProvider> and calls provider.getPath(uri) on the first provider whose scheme matches the attacker-chosen scheme. Untrusted JSON can therefore select and drive an arbitrary registered FileSystemProvider during readValue under a default JsonMapper, and forces provider class loading at the same time. With only the JDK built-in providers (file, jar/zipfs) present, the resolved path is inert and no mount or network I/O occurs; further impact requires a side-effecting third-party FileSystemProvider on the classpath. This affects com.fasterxml.jackson.core:jackson-databind from 2.8.0 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. Binding java.nio.file.Path from untrusted JSON should be avoided regardless of version.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5
Vulnerability Title
FasterXML jackson-databind 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FasterXML jackson-databind是FasterXML组织开源的一个具有数据绑定功能的组件。 FasterXML jackson-databind存在安全漏洞，该漏洞源于对java.nio.file.Path的反序列化器未限制URI方案，攻击者可通过不受信任的JSON构造URI，进而选择并驱动任意已注册的FileSystemProvider，同时强制加载提供者类，可能导致拒绝服务。受影响版本包括：2.8.0至2.18.10之前版本、2.19.0至2.21.6之前版本、2.22.0至2.2
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FasterXML jackson-databind 2.8.0 ~ 2.18.10 -
FasterXML jackson-databind 3.0.0 ~ 3.1.6 -

II. Public POCs for CVE-2026-19032

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III. Intelligence Information for CVE-2026-19032

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Patches & Fixes for CVE-2026-19032 (4)

Vendor Advisories for CVE-2026-19032 (1)

IV. Related Vulnerabilities

Same product: jackson-databind
Same vendor: FasterXML
Same weakness: CWE-470