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Advisory record · GHSA-hgj6-7826-r7m5

jackson-databind: InetSocketAddress deserialization triggers eager DNS resolution (SSRF)

CVSS 5.3 MediumEPSS 0.0037 · 30th percentile

Published by the GitHub Advisory Database at 23 Jun 2026, 21:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.fasterxml.jackson.core:jackson-databindMaven>=2.0.0, <2.18.8 || >=2.19.0, <2.21.4 || >=3.0.0, <3.1.42.18.8, 2.21.4, 3.1.4
tools.jackson.core:jackson-databindMaven>=2.19.0, <2.21.4 || >=3.0.0, <3.1.42.21.4, 3.1.4
Identifiers
GHSA-hgj6-7826-r7m5 · CVE-2026-54514
Weakness (CWE)
CWE-918
Tags
Published
23 Jun 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

jackson-databind (com.fasterxml.jackson.core) versions 2.0.0 to before 2.18.8, 2.19.0 to before 2.21.4, and 3.0.0 to before 3.1.4 perform DNS lookups for hostnames when deserializing InetSocketAddress fields. An attacker who can supply JSON bound to such a type can trigger outbound DNS queries for chosen hostnames. Upgrade to 2.18.8, 2.21.4, or 3.1.4.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0037, the 30th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 16 Jun 2026, 01:18 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 14:17 UTC First seen by agentprime
  3. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.