Vulnerability details
CVE-2026-41731
Red Hat Fuse 7Spring for Apache Kafka
In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization
CVSS 3.1
8.1High
Official description
JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types. Affected versions: Spring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (vmware) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat Fuse 7 | All | CVEProject cvelistV5 (CNA) |
| Spring | Spring for Apache Kafka | 2.8.0 ≤ v < 2.8.12 | CVEProject cvelistV5 (CNA) |
| Spring | Spring for Apache Kafka | 2.9.0 ≤ v < 2.9.14 | CVEProject cvelistV5 (CNA) |
| Spring | Spring for Apache Kafka | 3.2.0 ≤ v < 3.2.14 | CVEProject cvelistV5 (CNA) |
| Spring | Spring for Apache Kafka | 3.3.0 ≤ v < 3.3.15.1 | CVEProject cvelistV5 (CNA) |
| Spring | Spring for Apache Kafka | 4.0.0 ≤ v < 4.0.5.1 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://spring.io/security/cve-2026-41731
- https://access.redhat.com/security/cve/CVE-2026-41731 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2487375 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41731.json x_sadp-csaf-vex
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Details
- Published
- 2026-06-10
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- vmware
Exploit prediction (EPSS)
0.51%
Probability of exploitation in 30 days
43.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data