CVE-2026-41732

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

Published Jun 9, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-gg69-9wwp-6jx2 Spring for Apache Pulsar: JsonPulsarHeaderMapper Trusted-Package Prefix Check Allows Unintended Subpackage Deserialization
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Spring
Spring spring For Apache Pulsar
Vendors & Products Spring
Spring spring For Apache Pulsar
Type Values Removed Values Added
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.
Title In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
vmware
Published
Updated
Jun 27, 2026, 9:17 PM
Reserved
Apr 22, 2026, 6:21 AM
Status
Analyzed
Published
Jun 10, 2026, 12:16 AM
Modified
Jul 23, 2026, 9:10 AM