CVE-2026-41732 Details
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.
A vulnerability exists in Spring for Apache Pulsar versions 2.0.0 through 2.0.5, 1.2.0 through 1.2.17, and 1.1.0 through 1.1.17, where the JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check. This approach allowed any trusted package to implicitly trust all of its subpackages. Furthermore, an empty trusted-packages configuration defaulted to trusting all packages instead of applying a safe allow-list. This vulnerability could lead to the deserialization of arbitrary JDK classes, including those with side-effect carrying constructors, such as allocating file descriptors or spawning thread pools.
Users should upgrade to Spring for Apache Pulsar 2.0.6, 1.2.18, or 1.1.18. Instructions for accessing these versions are available on the Spring Enterprise website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://spring.io/security/cve-2026-41732 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vmware spring for apache pulsar | >= 1.1.0, < 1.1.18 >= 1.2.0, < 1.2.17.1 >= 2.0.0, < 2.0.6 |
CPE
Remediation
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Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 17, 2026 | Modified Analysis | [email protected] |
| Jun 27, 2026 | CVE Modified | [email protected] |
| Jun 22, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 10, 2026 | New CVE Received | [email protected] |