HOME VULNERABILITIESCVE-2026-54513

HIGH

CVE-2026-54513

CWE-184Published: June 23, 2026· Updated: Jun 30, 2026

8.1

CVSS v3.1

EPSS:0.60%probability of exploitation in 30 daysPercentile:44.0th

Official Description

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.

Technical Analysis

CVE-2026-54513 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

fasterxml1 product

jackson-databind

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5

PATCHhttps://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8e

PATCHhttps://github.com/FasterXML/jackson-databind/issues/5983

PATCHhttps://github.com/FasterXML/jackson-databind/pull/5984

PATCHhttps://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9f

All References (9)

→

https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5Patch

→

https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8ePatch

→

https://github.com/FasterXML/jackson-databind/issues/5981Issue Tracking

→

https://github.com/FasterXML/jackson-databind/issues/5983Issue Tracking · Patch

→

https://github.com/FasterXML/jackson-databind/pull/5984Issue Tracking · Patch

→

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9fPatch · Vendor Advisory

→

https://access.redhat.com/security/cve/CVE-2026-54513

→

https://bugzilla.redhat.com/show_bug.cgi?id=2492010

→

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54513.json

Quick Facts

CVE IDCVE-2026-54513

CVSS Score8.1 / 10

SeverityHIGH

WeaknessCWE-184

CISA KEVNo

EPSS (30d)0.60%

Affected1 vendor

PublishedJun 23, 2026

Related CVEs (CWE-184)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2026-54513 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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