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SCA: security update for com.fasterxml.jackson.core:jackson-databind, tools.jackson.core:jackson-databind (GHSA-j3rv-43j4-c7qm)

high Tenable Cloud Security Plugin ID 443855

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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, jackson-databind's PolymorphicTypeValidator (PTV)
 is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled
 and a type identifier contains generic parameters (i.e. the type ID string contains <),
 DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring
 before <) against the configured PTV. If the container type is approved, the method parses the full
 canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type
 without ever validating the nested type arguments against the PTV. The nested type arguments are then
 resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type
 ID can therefore place a denied class as a generic type parameter of an allowed container — for example
 java.util.ArrayList<com.evil.Gadget> when only java.util.ArrayList is allow-listed. The container passes
 the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its
 properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV
 allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4. (CVE-2026-54512)

Solution

Update the com.fasterxml.jackson.core:jackson-databind library and its related packages to version 2.18.8 or later.

See Also

https://github.com/advisories/GHSA-j3rv-43j4-c7qm

Plugin Details

Severity: High

ID: 443855

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/24/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.09

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-54512

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 6/23/2026

Reference Information

CVE: CVE-2026-54512