CVE-2026-77310
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.
- CVSS 3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-vvgp-rfg2-7rr6 | 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 |