Medium severity5.3NVD Advisory· Published Aug 24, 2026· Updated Sep 9, 2026
CVE-2026-77310
CVE-2026-77310
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.fasterxml.jackson.core:jackson-databindMaven | >= 2.0.0, < 2.18.9 | 2.18.9 |
com.fasterxml.jackson.core:jackson-databindMaven | >= 2.19.0, < 2.21.5 | 2.21.5 |
com.fasterxml.jackson.core:jackson-databindMaven | >= 2.22.0, < 2.22.1 | 2.22.1 |
tools.jackson.core:jackson-databindMaven | >= 3.0.0, < 3.1.5 | 3.1.5 |
tools.jackson.core:jackson-databindMaven | >= 3.2.0, < 3.2.1 | 3.2.1 |
Affected products
1- Range: <2.18.9, <2.21.5, <2.22.1, <3.1.5, <3.2.1
Patches
Vulnerability mechanics
References
10- github.com/advisories/GHSA-vvgp-rfg2-7rr6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-77310ghsaADVISORY
- github.com/FasterXML/jackson-databind/commit/2fc7bd9057dd051d7dea0e5fcad89822d0fa5ebdghsaWEB
- github.com/FasterXML/jackson-databind/pull/6058ghsaWEB
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.9ghsaWEB
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.5ghsaWEB
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.1ghsaWEB
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.5ghsaWEB
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.1ghsaWEB
- github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6nvdWEB
News mentions
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