FKIE_CVE-2026-54513

Vulnerability from fkie_nvd - Published: 2026-06-23 21:17 - Updated: 2026-07-09 13:17
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
References
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5Patch
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8ePatch
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/issues/5981Issue Tracking
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/issues/5983Issue Tracking, Patch
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/pull/5984Issue Tracking, Patch
security-advisories@github.comhttps://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9fPatch, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:36839
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-54513
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2492010
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54513.json
Impacted products
Vendor Product Version
fasterxml jackson-databind *
fasterxml jackson-databind *
fasterxml jackson-databind *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "jackson-databind",
          "vendor": "FasterXML",
          "versions": [
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              "version": "\u003e= 2.10.0, \u003c 2.18.8"
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              "version": "\u003e= 2.19.0, \u003c 2.21.4"
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              "version": "\u003e= 3.0.0, \u003c 3.1.4"
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          "vendor": "Red Hat"
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          "vendor": "Red Hat"
        },
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    }
  ],
  "id": "CVE-2026-54513",
  "lastModified": "2026-07-09T13:17:29.703",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.