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Spring Cloud Stream CVE-2026-59306

| EUVDEUVD-2026-67194 LOW
Deserialization of Untrusted Data (CWE-502)
2026-08-27 vmware GHSA-j34j-5m9r-p984
3.1
CVSS 3.1 · Vendor: vmware

Severity by source

Vendor (vmware) PRIMARY
3.1 LOW
AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
vuln.today AI
3.1 LOW

Consistent with provided vector: high privilege and complexity prerequisites, mandatory user interaction, and impact limited to partial confidentiality and integrity with no availability loss.

3.1 AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
4.0 AV:N/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (vmware).

CVSS VectorVendor: vmware

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
Analysis Generated
Aug 27, 2026 - 20:55 vuln.today

DescriptionCVE.org

Potential for deserialization of untrusted types in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6

AnalysisAI

Spring Cloud Stream versions 5.0.0-5.0.2, 4.3.0-4.3.3, and 4.2.0-4.2.6 expose a deserialization of untrusted types flaw that could allow a network-positioned attacker with high privileges and required user interaction to gain limited read and write access to application data. The CVSS vector (AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N) reflects heavy exploitation constraints, making real-world abuse unlikely without insider-level access and specific preconditions. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold high-privilege credentials (PR:H per CVSS), meaning control over the application layer, its messaging infrastructure, or an administrative account - not an anonymous or low-privileged network position. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Converging signals consistently place this in the low-priority tier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade Spring Cloud Stream to a fixed release as specified in the VMware/Spring security advisory at https://spring.io/security/cve-2026-59306. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-59306 vulnerability details – vuln.today

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