Description
jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FasterXML | jackson-core | >= 3.0.0, < 3.1.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jackson-core | No fix yet | — |
| Ubuntu 26.04 LTS | jackson-core | No fix yet | — |
| Ubuntu 25.10 | jackson-core | No fix yet | — |
| Ubuntu 24.04 LTS | jackson-core | No fix yet | — |
| Ubuntu 22.04 LTS | jackson-core | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | jackson-core | No fix yet | — |
| Ubuntu 18.04 LTS | jackson-core | No fix yet | — |
| Ubuntu 16.04 LTS | jackson-core | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | apache-nifi | 2.8.0-r1 | — |
| Wolfi rolling | apicurio-registry | 3.3.0-r1 | — |
| Wolfi rolling | flyway | 12.1.0-r0 | — |
| Wolfi rolling | keycloak-config-cli +1 | 6.5.1-r1 | — |
| Wolfi rolling | sonarqube | 26.2.0.119303-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | tools.jackson.core:jackson-core | >= 3.0.0, < 3.1.0 | 3.1.0 | GHSA-6v53-7c9g-w56r |
Advisories 3
- WID-SEC-2026-2448 Oracle Utilities Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 21, 2026
- WID-SEC-2026-1608 Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 19, 2026
- WID-SEC-2026-0624 FasterXML Jackson: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen und potenziell Denial of Service BSI CERT-Bund (WID) · Mar 5, 2026