medium5.3
CVE-2026-77310
jackson-databind: Incomplete fix for CVE-2026-54514: eager DNS resolution (SSRF) still present in InetAddress deserialization
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.fasterxml.jackson.core:jackson-databind | >= 2.0.0, < 2.18.9 | 2.18.9 |
| maven | tools.jackson.core:jackson-databind | >= 3.0.0, < 3.1.5 | 3.1.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-vvgp-rfg2-7rr6
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6
- https://nvd.nist.gov/vuln/detail/CVE-2026-77310
- https://github.com/FasterXML/jackson-databind/pull/6058
- https://github.com/FasterXML/jackson-databind/commit/2fc7bd9057dd051d7dea0e5fcad89822d0fa5ebd
- https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.9
- https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.5
- https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.1
- https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.5
- https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.1