Description
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName() on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FasterXML | com.fasterxml.jackson.core:jackson-databind | >= 2.0.0, < 2.18.9, >= 2.19.0, < 2.21.5, >= 2.22.0, < 2.22.1 | — |
| FasterXML | tools.jackson.core:jackson-databind | >= 3.0.0, < 3.1.5, >= 3.2.0, < 3.2.1 | — |
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-databind | No fix yet | — |
| Ubuntu 26.04 LTS | jackson-databind | No fix yet | — |
| Ubuntu 24.04 LTS | jackson-databind | No fix yet | — |
| Ubuntu 22.04 LTS | jackson-databind | No fix yet | — |
| Ubuntu 20.04 LTS | jackson-databind | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | jackson-databind | No fix yet | — |
| Ubuntu Pro 16.04 LTS | jackson-databind | No fix yet | — |
| Ubuntu Pro 14.04 LTS | jackson-databind | No fix yet | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | jackson-databind | 2.21.5-2.amzn2023.0.1 | ALAS2023-2026-2081 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | akhq | 0.28.0-r10 | — |
| Wolfi rolling | celeborn-0.6 +4 | No fix yet | — |
| Wolfi rolling | druid | 38.0.0-r1 | — |
| Wolfi rolling | logstash-9.3 +1 | 9.3.8-r2 | — |
| Wolfi rolling | sonarqube | 26.9.0.129388-r1 | — |
| Wolfi rolling | spark-4.0-scala-2.13 | 4.0.4-r8 | — |
| Wolfi rolling | spark-4.1-scala-2.13 | 4.1.4-r2 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | com.fasterxml.jackson.core:jackson-databind | >= 2.0.0, < 2.18.9 | 2.18.9 | GHSA-vvgp-rfg2-7rr6 |
| Maven | com.fasterxml.jackson.core:jackson-databind | >= 2.19.0, < 2.21.5 | 2.21.5 | GHSA-vvgp-rfg2-7rr6 |
| Maven | com.fasterxml.jackson.core:jackson-databind | >= 2.22.0, < 2.22.1 | 2.22.1 | GHSA-vvgp-rfg2-7rr6 |
| Maven | tools.jackson.core:jackson-databind | >= 3.0.0, < 3.1.5 | 3.1.5 | GHSA-vvgp-rfg2-7rr6 |
| Maven | tools.jackson.core:jackson-databind | >= 3.2.0, < 3.2.1 | 3.2.1 | GHSA-vvgp-rfg2-7rr6 |
Advisories 3
- WID-SEC-2026-2988 FasterXML Jackson: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Nov 3, 2026
- WID-SEC-2026-3595 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALAS2023-2026-2081 Moderate: jackson-databind security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 15, 2026