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OpenAdvisories
High · 8.1 CVE-2026-41732 EUVD-2026-35909GHSA-gg69-9wwp-6jx2

In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization

Published Jun 9, 2026 · Updated Jun 27, 2026 · Assigned by vmware

Description

JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages rather than applying a safe default allow-list.

Affected versions:
Spring for Apache Pulsar 2.0.0 through 2.0.5; 1.2.0 through 1.2.17; 1.1.0 through 1.1.17.

Affected products

VendorProductAffectedFixed
Spring Spring for Apache Pulsar 2.0.0 – < 2.0.5.1, 1.2.0 – < 1.2.17.1, 1.1.0 – < 1.1.18 2.0.5.1

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.springframework.pulsar:spring-pulsar >= 2.0.0, < 2.0.6 2.0.6 GHSA-gg69-9wwp-6jx2
Maven org.springframework.pulsar:spring-pulsar >= 1.2.0, < 1.2.18 1.2.18 GHSA-gg69-9wwp-6jx2
Maven org.springframework.pulsar:spring-pulsar <= 1.1.17 — GHSA-gg69-9wwp-6jx2

References