EUVD-2026-66854
GHSA-g782-8rcv-55rh
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable if endpoint is exposed; no authentication or interaction required once found; impact is purely availability with no confidentiality or integrity component.
Primary rating from Vendor (vmware).
CVSS VectorVendor: vmware
Lifecycle Timeline
3DescriptionCVE.org
Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack when the power operator (^) is used with a BigDecimal or BigInteger operand and a large exponent value. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier
AnalysisAI
Uncontrolled resource consumption in Spring Framework's SpEL evaluator allows unauthenticated remote attackers to trigger a Denial of Service by submitting expressions using the power operator (^) with BigDecimal or BigInteger operands and arbitrarily large exponents, causing unbounded CPU and memory exhaustion in the JVM. All maintained Spring Framework release lines from 5.2.x through 7.0.x are affected, covering a large portion of the enterprise Java ecosystem. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target application explicitly evaluates user-supplied SpEL expressions at runtime - for example, by passing HTTP request parameters, JSON body fields, or database-stored strings directly into ExpressionParser.parseExpression() or equivalent APIs. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects the worst-case exposure where an unauthenticated network endpoint passes raw user input directly to a SpEL evaluator. … 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 | The primary remediation is upgrading Spring Framework to a patched release; exact fixed version numbers are not stated in the available intelligence data and must be confirmed from the vendor security advisory at https://spring.io/security/cve-2026-47886 before applying. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify all applications and infrastructure running Spring Framework versions 5.2.x through 7.0.x, particularly in production environments. …
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External POC / Exploit Code
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