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Advisory record · GHSA-rmj7-2vxq-3g9f

jackson-databind has an array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)

CVSS 8.1 HighEPSS 0.012 · 68th 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>=2.10.0, <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>=3.0.0, <3.1.43.1.4
Identifiers
GHSA-rmj7-2vxq-3g9f · CVE-2026-54513
Weakness (CWE)
CWE-184
Tags
Published
23 Jun 2026
Updated
11 Sept 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
8.1 High 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.012, the 68th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 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.