CVE-2026-54513

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Source
https://cve.org/CVERecord?id=CVE-2026-54513
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54513.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54513
Aliases
Downstream
Related
Published
2026-06-23T20:53:52.543Z
Modified
2026-07-24T08:01:13.392278Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
jackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-184"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54513.json"
}
References

Affected packages

Git / github.com/fasterxml/jackson-databind

Affected ranges

Type
GIT
Repo
https://github.com/fasterxml/jackson-databind
Events
Introduced
a1eedfdeea46f2a8da0ed23f06e7e1d39050499b
Fixed
0b422144d1785200e44a0b00c973f6ac95adcf5a
Introduced
f644a920f4ac768797edf7709070411837c83ef8
Fixed
dd72fa6c89b5cea6c4eba5a8604f248bbc5d93e5
Introduced
d51183e4fa171235bcd31c63268c5ad1745afb8c
Fixed
0105ba7c8c7d2aa59707c458eeb6c27e77779734
Fixed
01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5
Fixed
24529da29fdf46ff94ca38de9ebf31cd188f5e8e
Database specific 
{
    "cpe": "cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.10.0"
        },
        {
            "fixed": "2.18.8"
        },
        {
            "introduced": "2.19.0"
        },
        {
            "fixed": "2.21.4"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.1.4"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

jackson-databind-2.*
jackson-databind-2.10.0
jackson-databind-2.11.0
jackson-databind-2.11.0.rc1
jackson-databind-2.12.0
jackson-databind-2.12.0-rc1
jackson-databind-2.12.0-rc2
jackson-databind-2.12.1
jackson-databind-2.13.0
jackson-databind-2.13.0-rc1
jackson-databind-2.13.0-rc2
jackson-databind-2.14.0
jackson-databind-2.14.0-rc1
jackson-databind-2.14.0-rc2
jackson-databind-2.14.0-rc3
jackson-databind-2.15.0
jackson-databind-2.15.0-rc1
jackson-databind-2.15.0-rc2
jackson-databind-2.15.0-rc3
jackson-databind-2.16.0
jackson-databind-2.16.0-rc1
jackson-databind-2.17.0-rc1
jackson-databind-2.18.0
jackson-databind-2.18.0-rc1
jackson-databind-2.18.1
jackson-databind-2.18.2
jackson-databind-2.18.3
jackson-databind-2.18.4
jackson-databind-2.18.5
jackson-databind-2.18.6
jackson-databind-2.18.7
jackson-databind-2.19.0
jackson-databind-2.20.0
jackson-databind-2.20.0-rc1
jackson-databind-2.21.0
jackson-databind-2.21.1
jackson-databind-2.21.2
jackson-databind-2.21.3
jackson-databind-3.*
jackson-databind-3.0.0
jackson-databind-3.0.1
jackson-databind-3.1.0
jackson-databind-3.1.0-rc1
jackson-databind-3.1.1
jackson-databind-3.1.2
jackson-databind-3.1.3

Database specific

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source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54513.json"