CVE-2026-54517: Jackson databind Jackson-databind Has @JsonView Bypass For Vulnerability

MODERATE
Advisory Identifier: GHSA-5hh8-q8hv-fr38
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CVSS 5.3
CWE-863
Published
Advisory Summary

CVE-2026-54517 is a MODERATE (CVSS 5.3) jackson-databind has @jsonview bypass for vulnerability (CWE-863: Incorrect Authorization) affecting Jackson databind libraries in the Maven ecosystem. The issue involves jackson-databind has @jsonview bypass for setterless creator properties. Remediation is available by upgrading affected packages to version 2.21.4, 3.1.4.

CVE-2026-54517 at a Glance

CVE Identifier CVE-2026-54517
GHSA Identifier GHSA-5hh8-q8hv-fr38
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-863: Incorrect Authorization
Affected Product Jackson databind
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-54517

To remediate this vulnerability, upgrade all affected Jackson databind dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

com.fasterxml.jackson.core:jackson-databind fixed: 2.21.4 
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.21.4</version>
</dependency>
com.fasterxml.jackson.core:jackson-databind fixed: 3.1.4 
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>3.1.4</version>
</dependency>
tools.jackson.core:jackson-databind fixed: 3.1.4 
<dependency>
    <groupId>tools.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>3.1.4</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=com.fasterxml.jackson.core

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-54517, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.fasterxml.jackson.core

Analyze the terminal output to locate any version of Jackson databind in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.21.4), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.fasterxml.jackson.core command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Jackson databind, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary In `BeanDeserializer._deserializeUsingPropertyBased`, the active-view (`@JsonView`) filter was applied only to creator properties; the regular property-buffering branch performed no `prop.visibleInView(activeView)` check. A change making `SetterlessProperty.isMerging()` return `true` routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted `@JsonView` is populated from attacker JSON even when the active view excludes it. ## Impact View-restricted (e.g. admin-only) setterless collection/map properties can be written from untrusted JSON despite `@JsonView` gating — an access-control / mass-assignment bypass. No RCE or DoS. ## Affected / Patched (verified via `git tag --contains`) - 2.21 line: `>= 2.21.0, < 2.21.4` -> fixed in **2.21.4** (backport `94c5d21`, #5970) - 3.x line: `>= 3.0.0, < 3.1.4` -> fixed in **3.1.4** (#5969, `5bf23ed`) ## Severity / CWE Maintainer: minor. Reporter: HIGH. CWE-863 (Incorrect Authorization); related CWE-1220. ## Credits Omkhar Arasaratnam (@omkhar) - finder.

CVE-2026-54517 Affected Jackson databind Versions

3 component(s)
Fixed Versions:
2.21.43.1.4
Product / Package Ecosystem Affected Versions Fixed Version
com.fasterxml.jackson.core:jackson-databind
maven/com.fasterxml.jackson.core/jackson-databind
Maven
≥ 2.21.0
< 2.21.4
2.21.4
com.fasterxml.jackson.core:jackson-databind
maven/com.fasterxml.jackson.core/jackson-databind
Maven
≥ 3.0.0
< 3.1.4
3.1.4
tools.jackson.core:jackson-databind
maven/tools.jackson.core/jackson-databind
Maven
≥ 3.0.0
< 3.1.4
3.1.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38
NVD — CVE-2026-54517 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54517
Jackson databind Source Repository REPOSITORY
https://github.com/FasterXML/jackson-databind/pull/5969
Jackson databind Source Repository REPOSITORY
https://github.com/FasterXML/jackson-databind/pull/5970
Security Fix Commit FIX COMMIT
https://github.com/FasterXML/jackson-databind/commit/5bf23edb4221f7dd2ec8e71ff6d26c61640f261d
Security Fix Commit FIX COMMIT
https://github.com/FasterXML/jackson-databind/commit/94c5d215b3af1505098c686405d9641f041a9962
Jackson databind Source Repository REPOSITORY
https://github.com/FasterXML/jackson-databind

Frequently Asked Questions

What is CVE-2026-54517?
CVE-2026-54517 is a security vulnerability in Jackson databind involving jackson-databind has @JsonView bypass for setterless creator properties under CWE-863: Incorrect Authorization.
Which Jackson databind versions are affected?
Affected versions include releases prior to 2.21.4, 3.1.4 across affected packages: com.fasterxml.jackson.core:jackson-databind, tools.jackson.core:jackson-databind.
What version fixes CVE-2026-54517?
Upgrading to 2.21.4, 3.1.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jackson-databind affected?
Yes, com.fasterxml.jackson.core:jackson-databind is affected in releases prior to 2.21.4, 3.1.4. Upgrade your dependency to 2.21.4, 3.1.4 or later.
What is the CVSS score of CVE-2026-54517?
CVE-2026-54517 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-54517?
CVE-2026-54517 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Maven dependencies for CVE-2026-54517?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.fasterxml.jackson.core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5hh8-q8hv-fr38",
  "modified" : "2026-07-20T21:21:27Z",
  "published" : "2026-06-23T21:24:50Z",
  "aliases" : [ "CVE-2026-54517" ],
  "summary" : "jackson-databind has @JsonView bypass for setterless creator properties",
  "details" : "## Summary\nIn `BeanDeserializer._deserializeUsingPropertyBased`, the active-view (`@JsonView`) filter was applied only to creator properties; the regular property-buffering branch performed no `prop.visibleInView(activeView)` check. A change making `SetterlessProperty.isMerging()` return `true` routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted `@JsonView` is populated from attacker JSON even when the active view excludes it.\n\n## Impact\nView-restricted (e.g. admin-only) setterless collection/map properties can be written from untrusted JSON despite `@JsonView` gating — an access-control / mass-assignment bypass. No RCE or DoS.\n\n## Affected / Patched (verified via `git tag --contains`)\n- 2.21 line: `>= 2.21.0, < 2.21.4` -> fixed in **2.21.4** (backport `94c5d21`, #5970)\n- 3.x line: `>= 3.0.0, < 3.1.4` -> fixed in **3.1.4** (#5969, `5bf23ed`)\n\n## Severity / CWE\nMaintainer: minor. Reporter: HIGH. CWE-863 (Incorrect Authorization); related CWE-1220.\n\n## Credits\nOmkhar Arasaratnam (@omkhar) - finder.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.fasterxml.jackson.core:jackson-databind"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.21.0"
      }, {
        "fixed" : "2.21.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.fasterxml.jackson.core:jackson-databind"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.1.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "tools.jackson.core:jackson-databind"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.1.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-54517"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FasterXML/jackson-databind/pull/5969"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FasterXML/jackson-databind/pull/5970"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FasterXML/jackson-databind/commit/5bf23edb4221f7dd2ec8e71ff6d26c61640f261d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FasterXML/jackson-databind/commit/94c5d215b3af1505098c686405d9641f041a9962"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/FasterXML/jackson-databind"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-23T21:24:50Z",
    "nvd_published_at" : "2026-06-23T21:17:02Z"
  }
}