Security Bulletin:Inconsistent Enforcement of MaxNumberLength in Jackson-Core Async JSON Parser, Leading to DoS

Summary 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...

Security Bulletin: Vulnerability reported in jackson-core-2.18.6.jar for APIM 11.1 is now addressed

Summary Vulnerability reported in jackson-core-2.18.6.jar for APIM 11.1 is now addressed Vulnerability Details CVEID:CVE-2026-68494 DESCRIPTION: The fix released in jackson-core 2.18.6 and 2.21.1 for CVE-2026-18401 GHSA-72hv-8253-57qq, number length constraint bypass in the non-blocking parser is...

Security Bulletin: IBM SPSS Analytic Server is affected by vulnerabilities in jackson-core

Summary IBM SPSS Analytic Server is affected by multiple vulnerabilities in jackson-core. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2026-18401 DESCRIPTION: The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength...

Denial Of Service

Jackson Core is vulnerable to Denial Of Service. The vulnerability is due to NonBlockingUtf8JsonParserBase failing to enforce maxNumberLength when a non-blocking JSON number remains in MINORNUMBERINTEGERDIGITS across input chunks, allowing an attacker to exhaust JVM heap memory through repeated o...

ECHO-A10B-DD74-A1AF

Bulletin has no description...

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

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r7wm-3cxj-wff9. This link is maintained to preserve external references. Original Description The fix released in jackson-core 2.18.6 and 2.21.1 for CVE-2026-18401 GHSA-72hv-8253-57qq, number length constraint...

CVE-2026-68494: Allocation of Resources Without Limits or Throttling

The fix released in jackson-core 2.18.6 and 2.21.1 for CVE-2026-18401 GHSA-72hv-8253-57qq, number length constraint bypass in the non-blocking parser is incomplete. This record covers the remaining bypass. The earlier fix wired validateIntegerLength into a new setIntLength helper and invoked it...