# tools.jackson.core:jackson-core (Maven) vulnerabilities

5 known vulnerabilities (4 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 3.3.0 (Nov 8, 2026): no advisory affects it
- Newest unaffected release: 3.3.0 (Nov 8, 2026), the latest release
- Dependents: 1,439
- Releases: 31 since 3.0.0 (Oct 3, 2025)
- Registry: https://central.sonatype.com/artifact/tools.jackson.core/jackson-core
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-89425: 3.0.0 to 3.1.6 (3.1.7 is outside it); 3.2.0 to 3.2.2 (3.2.3 is outside it)
- CVE-2026-89407: 3.0.0 to 3.1.6 (3.1.7 is outside it); 3.2.0 to 3.2.1 (3.2.2 is outside it)
- CVE-2026-68494: 3.0.0 to 3.1.3 (3.1.4 is outside it)
- CVE-2026-18401: 3.0.0 to 3.1.0-rc1 (3.1.0 is outside it)
- CVE-2026-29062: 3.0.0 to 3.1.0-rc1 (3.1.0 is outside it)

## Advisories (5)

### [CVE-2026-89425](https://cve.now/CVE-2026-89425): jackson-core: UTF8DataInputJsonParser.\_reportInvalidToken() does not honor maxErrorTokenLength, allowing unbounded StringBuilder growth

- Severity: High 7.5
- Published: Sep 23, 2026
- Affected: from 3.0.0, through 3.1.6; from 3.2.0, through 3.2.2; from 3.0.0, fixed in 3.1.7; from 3.2.0, fixed in 3.2.3.
- Fixed in 3.1.7 (released Sep 21, 2026, 2 days before disclosure) and 3.2.3 (released Sep 22, 2026, 1 day before disclosure).
- The latest release, 3.3.0, is not affected.

### [CVE-2026-89407](https://cve.now/CVE-2026-89407): jackson-core: quadratic backtracking in NumberInput.PATTERN\_FLOAT via looksLikeValidNumber() enables ReDoS

- Severity: High 7.5
- Published: Sep 22, 2026
- Affected: from 3.0.0, through 3.1.6; from 3.2.0, through 3.2.1; from 3.0.0, fixed in 3.1.7; from 3.2.0, fixed in 3.2.2.
- Fixed in 3.1.7 (released Sep 21, 2026, 1 day before disclosure) and 3.2.2 (released Aug 14, 2026, 39 days before disclosure).
- The latest release, 3.3.0, is not affected.

### [CVE-2026-68494](https://cve.now/CVE-2026-68494): jackson-core: Async parser maxNumberLength bypass via chunked digit accumulation (incomplete fix for CVE-2026-18401 / GHSA-72hv-8253-57qq)

- Severity: High 8.7
- Published: Aug 4, 2026
- Affected: from 3.0.0, fixed in 3.1.4; from 3.0.0, fixed in 3.1.4.
- Fixed in 3.1.4 (released May 29, 2026, 67 days before disclosure).
- The latest release, 3.3.0, is not affected.

### [CVE-2026-18401](https://cve.now/CVE-2026-18401): jackson-core: Number length constraint bypass in non-blocking (async) JSON parser leads to potential denial of service

- Severity: Medium 6.9
- Published: Aug 4, 2026
- Affected: from 3.0.0, fixed in 3.1.0; from 3.0.0, fixed in 3.1.0.
- Fixed in 3.1.0 (released Feb 23, 2026, 162 days before disclosure).
- The latest release, 3.3.0, is not affected.

### [CVE-2026-29062](https://cve.now/CVE-2026-29062): jackson-core: Nesting Depth Constraint Bypass in \`UTF8DataInputJsonParser\` potentially allowing Resource Exhaustion

- Severity: High 8.7
- Published: Mar 6, 2026
- Affected: from 3.0.0, fixed in 3.1.0.
- Fixed in 3.1.0 (released Feb 23, 2026, 11 days before disclosure).
- The latest release, 3.3.0, is not affected.

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