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CVE-2026-77310

Severity5.3 Medium CVSS 3.1
Fixed in2.18.9, 2.21.5, 2.22.1
WeaknessServer-side request forgery (CWE-918)
Published24 Aug 2026
Updated12 Oct 2026

Published 2 months ago. NVD often adds the list of affected products days or weeks after a CVE is published, and the other sources we check lag too. The scope and status here may change.

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.31% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: FasterXML/jackson-databind #6058.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6 : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update October 2026 ↗ CPU 2026-Q4 Oracle Utilities Applications / Security (jackson-databind) (4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Utilities Applications Security (jackson-databind) 4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10 4.4.0.2.0 · 4.4.0.3.0 · 4.4.0.4.0 · 4.5.0.0.0 · 4.5.0.1.1 · 4.5.0.1.3 · 4.5.0.2.0 · 25.4 · 25.10 · 26.4 · 26.10

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
com.fasterxml.jackson.core:jackson-databind 2.0.0 2.18.9 unbounded
com.fasterxml.jackson.core:jackson-databind 2.19.0 2.21.5 unbounded
com.fasterxml.jackson.core:jackson-databind 2.22.0 2.22.1 unbounded
tools.jackson.core:jackson-databind 3.0.0 3.1.5 unbounded
tools.jackson.core:jackson-databind 3.2.0 3.2.1 unbounded

Products and versions

2 products, 5 version entries
SourceVendorProductSchemeAffected versions
osv com.fasterxml.jackson.core jackson-databind generic ≥ 2.0.0 and < 2.18.9 · ≥ 2.19.0 and < 2.21.5 · ≥ 2.22.0 and < 2.22.1
osv tools.jackson.core jackson-databind generic ≥ 3.0.0 and < 3.1.5 · ≥ 3.2.0 and < 3.2.1

References

URLTags
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6 advisory
https://github.com/FasterXML/jackson-databind/pull/6058 WEB
https://github.com/FasterXML/jackson-databind/commit/2fc7bd9057dd051d7dea0e5fcad89822d0fa5ebd WEB
https://github.com/FasterXML/jackson-databind PACKAGE
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.9 WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.5 WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.1 WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.5 WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.1 WEB

Timeline

Published2026-08-24By the CVE Program.
NVD record modified2026-10-12NVD's own last-modified date for this record.