Security Bulletin: Uncontrolled Resource Consumption Security Vulnerability in Jackson-core Affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2026-0003)

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerability Vulnerability Details ID:WS-2026-0003 DESCRIPTION: The non-blocking async JSON parser in jackson-core bypasses the maxNumberLength constraint default: 1000 characters defined in...

Security Bulletin: IBM Terracotta is affected by jackson-core vulnerabilities that could allow attackers to trigger a denial of service via memory or CPU exhaustion by supplying arbitrarily long numbers

Summary IBM Terracotta uses jackson-core as a foundational Java library for parsing and generating JSON data. Vulnerability Details CVEID:CVE-2026-18401 DESCRIPTION: The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in...

com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser

A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This...

Security Bulletin: Multiple vulnerabilities in jackson-databind impact IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent

Summary Multiple vulnerabilities in jackson-databind impact IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent. These vulnerabilities have been addressed. Please read the details for remediation below. Vulnerability Details CVEID:CVE-2026-18401 DESCRIPTION:...

Amazon Linux 2023 : jackson-core (ALAS2023-2026-2067)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2067 advisory. The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters. An attacker able to submit...

Important: jackson-core

Issue Overview: The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters. An attacker able to submit JSON to an application that uses the async parser API can supply a number token of...

com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser

A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This...

Security Bulletin: IBM Sterling Control Center is affected by multiple vulnerabilities in jackson-core jar (CVE-2026-18401, CVE-2026-68494)

Summary IBM Sterling Control Center is affected by multiple vulnerabilities CVE-2026-18401 and CVE-2026-68494 reported for jackson-core-2.17.1.jar Vulnerability Details CVEID:CVE-2026-18401 DESCRIPTION: The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength...

ECHO-A10B-DD74-A1AF

Bulletin has no description...

Duplicate Advisory: jackson-core: Number Length Constraint Bypass in Async Parser Leads to Potential DoS Condition

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-72hv-8253-57qq. This link is maintained to preserve external references. Original Description The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in...

GHSA-6QM2-MCQ7-53QP Duplicate Advisory: jackson-core: Number Length Constraint Bypass in Async Parser Leads to Potential DoS Condition

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-72hv-8253-57qq. This link is maintained to preserve external references. Original Description The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in...

CVE-2026-18401

The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters. An attacker able to submit JSON to an application that uses the async parser API can supply a number token of arbitrary length,...

CVE-2026-68494

This CVE notes an incomplete fix for CVE-2026-18401 in jackson-core’s non-blocking parser, leaving a remaining bypass for number-length constraints when data is streamed in many small chunks. The issue arises in the async parser path (MINOR_NUMBER_INTEGER_DIGITS) where validateIntegerLength() is ...

EUVD-2026-52699

The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters. An attacker able to submit JSON to an application that uses the async parser API can supply a number token of arbitrary length,...

CVE-2026-18401 jackson-core: Number length constraint bypass in non-blocking (async) JSON parser leads to potential denial of service

The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters. An attacker able to submit JSON to an application that uses the async parser API can supply a number token of arbitrary length,...

CVE-2026-18401

The CVE describes a vulnerability in jackson-core’s non-blocking (async) JSON parser where maxNumberLength is not enforced, unlike the synchronous parser. Root cause: the async parsing path in NonBlockingUtf8JsonParserBase does not invoke number length validation; _finishNumberIntegralPart() accu...

GHSA-R7WM-3CXJ-WFF9 jackson-core: Async parser maxNumberLength bypass via chunked digit accumulation (incomplete fix for GHSA-72hv-8253-57qq)

Summary The fix released in jackson-core 2.18.6 and 2.21.1 for GHSA-72hv-8253-57qq Number Length Constraint Bypass in Async Parser, published 2026-02-28 is incomplete. The fix commit b0c428e6 1555 wired validateIntegerLength into a new setIntLength helper and called it at every place where the...

jackson-core: Async parser maxNumberLength bypass via chunked digit accumulation (incomplete fix for GHSA-72hv-8253-57qq)

Summary The fix released in jackson-core 2.18.6 and 2.21.1 for GHSA-72hv-8253-57qq Number Length Constraint Bypass in Async Parser, published 2026-02-28 is incomplete. The fix commit b0c428e6 1555 wired validateIntegerLength into a new setIntLength helper and called it at every place where the...

Security Bulletin: Vulnarability in jackson-core library (WS-2026-0003) affects Power HMC.

Summary The jackson-core library is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVE. Vulnerability Details ID:WS-2026-0003 DESCRIPTION: The non-blocking async JSON parser in jackson-core bypasses the maxNumberLength constraint default: 1000 characters defined i...

Security Bulletin: IBM SPSS Analytic Server is affected by a jackson-core async parser DoS vulnerability (WS-2026-0003)

Summary IBM SPSS Analytic Server is affected by a jackson-core async parser DoS vulnerability WS-2026-0003. This has been addressed in the remediation section. Vulnerability Details ID:WS-2026-0003 DESCRIPTION: The non-blocking async JSON parser in jackson-core bypasses the maxNumberLength...