GHSA-5HH8-Q8HV-FR38

Vulnerability from github – Published: 2026-06-23 21:24 – Updated: 2026-06-23 21:24
VLAI
Summary
jackson-databind has @JsonView bypass for setterless creator properties
Details

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.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.fasterxml.jackson.core:jackson-databind"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.21.0"
            },
            {
              "fixed": "2.21.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.fasterxml.jackson.core:jackson-databind"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "tools.jackson.core:jackson-databind"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54517"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-23T21:24:50Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "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 \u2014 an access-control / mass-assignment bypass. No RCE or DoS.\n\n## Affected / Patched (verified via `git tag --contains`)\n- 2.21 line: `\u003e= 2.21.0, \u003c 2.21.4` -\u003e fixed in **2.21.4** (backport `94c5d21`, #5970)\n- 3.x line: `\u003e= 3.0.0, \u003c 3.1.4` -\u003e 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.",
  "id": "GHSA-5hh8-q8hv-fr38",
  "modified": "2026-06-23T21:24:50Z",
  "published": "2026-06-23T21:24:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jackson-databind has @JsonView bypass for setterless creator properties"
}


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