Bump jackson-databind to 2.18.9 (CVE-2026-54515) - #324
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Fixes GHSA-5jmj-h7xm-6q6v: per-property @JsonIgnoreProperties exclusions were silently discarded when combined with per-property @jsonformat(ACCEPT_CASE_INSENSITIVE_PROPERTIES), making ignored properties writable again (mass-assignment risk, CWE-915). jackson-core and jackson-annotations align to 2.18.9 via the BOM. Co-authored-by: Cursor <cursoragent@cursor.com>
lrathod
requested review from
avinashkolluru,
kotharironak,
puneet-traceable,
skjindal93,
suddendust and
suresh-prakash
as code owners
September 4, 2026 09:51
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #324 +/- ##
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Coverage 81.06% 81.06%
Complexity 1617 1617
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Files 243 243
Lines 7656 7656
Branches 755 755
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Hits 6206 6206
Misses 960 960
Partials 490 490
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…ake) Co-authored-by: Cursor <cursoragent@cursor.com>
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What
Bumps
com.fasterxml.jackson.core:jackson-databindfrom 2.18.8 → 2.18.9 ingradle/libs.versions.toml.jackson-coreandjackson-annotationsalign to 2.18.9 via the jackson BOM.Why — CVE-2026-54515 / GHSA-5jmj-h7xm-6q6v (Medium, CVSS 5.3, CWE-915)
In jackson-databind ≥2.8.0 <2.18.9,
BeanDeserializerBase.createContextual()applies per-property@JsonIgnorePropertiesexclusions (producing a filteredBeanPropertyMap), but the subsequent per-property case-insensitivity block (triggered by@JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds the map from the original unfiltered_beanProperties— silently restoring the ignored properties and making them writable from attacker-controlled JSON (mass-assignment).Fixed in 2.18.9 (also 2.21.5 / 3.1.4 for newer lines). References:
Verification
./gradlew :document-store:dependencies --configuration runtimeClasspath→jackson-databind:2.18.9,jackson-core:2.18.9,jackson-annotations:2.18.9(no transitive pin left on 2.18.8)./gradlew :document-store:test→ all tests passMade with Cursor