GHSA-r7wm-3cxj-wff9 CVE-2026-54512 CVE-2026-54513 Upgrade Jackson to 2.18.9 - #307
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GHSA-r7wm-3cxj-wff9 CVE-2026-54512 CVE-2026-54513 Upgrade Jackson to 2.18.9#307vharseko wants to merge 1 commit into
vharseko wants to merge 1 commit into
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vharseko
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maximthomas
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Aug 7, 2026
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Fixes three Jackson vulnerabilities, all patched in the 2.18.8 release:
jackson-core, CVSS 8.7) —maxNumberLengthbypass when JSON is streamed in small chunks: up to ~20 MB of digits could accumulate before validation (memory-exhaustion DoS).jackson-databind, CVSS 8.1) —PolymorphicTypeValidatorbypass via generic type parameters: an allowed container type can wrap a denied nested type argument (RCE-capable PoC published).jackson-databind, CVSS 8.1) — PTV bypass viaallowIfSubTypeIsArray(): the array wrapper is allowed without validating the component type.The
parentBOM pins Jackson via thejackson.versionproperty (currently 2.18.6) and already importscom.fasterxml.jackson:jackson-bomwith it, so bumping the property to 2.18.9 (the latest 2.18.x patch) fixes every downstream consumer of the BOM — no per-project overrides needed (supersedes the OpenDJ-side workaround OpenIdentityPlatform/OpenDJ#855).Verification:
help:effective-pom: managedjackson-core,jackson-databind,jackson-annotationsall resolve to 2.18.9.dependency:treeofcommons/json-web-token: all Jackson artifacts at 2.18.9.commons/util(451 tests),commons/json-web-token(328 tests), zero failures.