Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

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.

Jackson-databind 中用于反序列化 的反序列化器在解析攻击者提供的 URI 时，未对 URI 的协议（scheme）进行限制。 在 方法中，来自不可信 JSON 的字符串会被传递给 ，随后传递给 。当此操作抛出 时，代码会枚举 ，并对第一个协议与攻击者所选协议匹配的提供商调用 。 因此，不可信的 JSON 可以在使用默认 执行 时，选择并驱动任意已注册的 ，同时强制加载相应的提供商类。 在仅存在 JDK 内置提供商（ 、 ）的情况下，解析出的路径是惰性的，不会发生挂载或网络 I/O；要进一步产生影响，

CVSS 5.3 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-19032

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

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

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

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-19032

请登录查看更多情报信息。

Other References for CVE-2026-19032 (5)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-19032

No comments yet

Leave a comment