Vmware Spring for Apache Pulsar up to 1.1.17/1.2.17/2.0.5 JsonPulsarHeaderMapper deserialization

Summaryinfo

A vulnerability was found in Vmware Spring for Apache Pulsar up to 1.1.17/1.2.17/2.0.5 and classified as problematic. This impacts an unknown function of the component JsonPulsarHeaderMapper. The manipulation results in deserialization. This vulnerability was named CVE-2026-41732. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Vmware Spring for Apache Pulsar up to 1.1.17/1.2.17/2.0.5. Affected is an unknown code of the component JsonPulsarHeaderMapper. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at spring.io. This vulnerability is traded as CVE-2026-41732 since 04/22/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/10/2026).

Upgrading to version 1.1.18, 1.2.18 or 2.0.6 eliminates this vulnerability.

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Productinfo

Vendor

• Vmware

Name

• Spring for Apache Pulsar

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.2.11
• 1.2.12
• 1.2.13
• 1.2.14
• 1.2.15
• 1.2.16
• 1.2.17
• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5

License

• commercial

Website

• Vendor: https://www.vmware.com/

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