MediumCVE-2026-19032

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

    Published Last modified Sources: Red Hat, BSI, SUSE, Hersteller, CVE.org, OSV

    What is affected, what to do

    A flaw was found in jackson-databind. When deserializing java.nio.file.Path from untrusted JSON input, the deserializer resolves an attacker-supplied Uniform Resource Identifier (URI) without restricting the URI scheme.

    Update FasterXML Jackson-databind to version 2.18.10, FasterXML Jackson-databind to version 2.21.6, FasterXML Jackson-databind to version 2.22.2.

    Affected
    • FasterXML Jackson-databind lt 2.8.0..2.18.10
    • FasterXML Jackson-databind lt 2.19.0..2.21.6
    • FasterXML Jackson-databind lt 2.22.0..2.22.2
    • FasterXML Jackson-databind lt 3.0.0..3.1.6
    • FasterXML Jackson-databind lt 3.2.0..3.2.2
    Fixed in
    • FasterXML Jackson-databind 2.18.10
    • FasterXML Jackson-databind 2.21.6
    • FasterXML Jackson-databind 2.22.2
    • FasterXML Jackson-databind 3.1.6
    • FasterXML Jackson-databind 3.2.2

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    5.3

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    5.3

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: Red Hat, BSI, SUSE, Hersteller, CVE.org, OSV

    0.6 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 47.2

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    69.46 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    5.3 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    5.3
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.6 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    47.2
    High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: proof of concept · automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 1 September 2026
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-470, CWE-610

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    A flaw was found in jackson-databind. When deserializing java.nio.file.Path from untrusted JSON input, the deserializer resolves an attacker-supplied Uniform Resource Identifier (URI) without restricting the URI scheme. This allows a remote attacker to select and drive an arbitrary registered FileSystemProvider and force provider class loading. While the direct impact with only built-in Java Development Kit (JDK) providers is limited, the presence of a side-effecting third-party FileSystemProvider on the classpath could lead to further unintended consequences, such as resource access or network input/output (I/O).

    Source: redhat_csaf, BSI WID Portal, BSI CSAF, suse_csaf, GitHub Security Advisories, cvelistv5, OSV (Open Source Vulnerabilities), NVD (NIST)

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    FasterXMLjackson-databind
    • 3.2.0 – < 3.2.2
    • 2.19.0 – < 2.21.6
    • 3.0.0 – < 3.1.6
    • 2.8.0 – < 2.18.10
    • 2.22.0 – < 2.22.2
    • 3.2.2
    • 2.21.6
    • 3.1.6
    • 2.18.10
    • 2.22.2
    FasterXMLJackson Databind
    • < 2.21.6
    • < 2.18.10
    • < 3.1.6
    • < 3.2.2
    • < 2.22.2
    • 2.21.6
    • 2.18.10
    • 3.1.6
    • 3.2.2
    • 2.22.2
    RealObjectsPDFreactor
    • < 12.7.1
    • 12.7.1
    SOS GmbHJobScheduler
    • < 2.8.5
    • 2.8.5

    Vendors and products

    Weakness classes (CWE)

    • CWE-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

      Base

      The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.

      Entry at MITRE CWE-470

    • CWE-610Externally Controlled Reference to a Resource in Another Sphere

      Class

      The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

      Entry at MITRE CWE-610

    References & sources

    • github.comGHSA-wjgm-6hv5-3cvfThird-party advisory
    • github.comFasterXML/jackson-databind#6129Patch, Issue tracking
    • github.comFix commit (2.x line, forward-merged to 2.21 and 2.22)Patch
    • github.comFix commit (3.1 line, merge of 2.x into 3.1)Patch
    • github.comFix commit (3.2 line, merge of 3.1 into 3.2)Patch
    • NVD (NIST)vuln/detail/CVE-2026-19032advisory
    • github.comFasterXML/jackson-databindpackage
    • github.comFasterXML/jackson-databind/releases/tag/jackson-databind-2.18.10web
    • github.comFasterXML/jackson-databind/releases/tag/jackson-databind-2.21.6web
    • github.comFasterXML/jackson-databind/releases/tag/jackson-databind-2.22.2web
    • github.comFasterXML/jackson-databind/releases/tag/jackson-databind-3.1.6web
    • github.comFasterXML/jackson-databind/releases/tag/jackson-databind-3.2.2web

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedCISA ADP

      CISA assessment (SSVC): exploitation: proof of concept, automatable: yes

      Show 2 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-wjgm-6hv5-3cvf
      SSVC assessmentadded
      —
      {"id":"CVE-2026-19032","role":"CISA Coordinator","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"version":"2.0.3","timestamp":"2026-09-01T13:12:52.665042Z"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    2. Received36c7be3b…

      CVSS V3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

      Weakness type: CWE-610, CWE-470

      Description added or changed

      Show 10 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      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.
      CVSSadded
      —
      AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
      Weakness type (CWE)added
      —
      CWE-610
      Weakness type (CWE)added
      —
      CWE-470
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/19xxx/CVE-2026-19032.json">CVE-2026-19032</a>
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/commit/cc6756b61ed90b6b9227f670e0408d5d9bd48551
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/commit/ce26eda3481cd796f76ba4c53ffe1da23b53f166
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/commit/d94bb632becfe0ba96926b9909ab06d1f87aad6d
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/pull/6129
      Referenceadded
      —
      https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-wjgm-6hv5-3cvf

      Source identifier: 36c7be3b-2937-45df-85ea-ca7133ea542c

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