Bug 2486710 (CVE-2026-41849)

Summary: CVE-2026-41849 spring-framework: Spring Framework: Denial of Service via integer overflow in SpEL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: sdawley
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Spring Expression Language (SpEL) within the Spring Framework. An integer overflow vulnerability allows a remote attacker to supply a specially crafted SpEL expression. This can trigger excessive resource consumption, leading to a Denial of Service (DoS) condition.
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Description OSIDB Bzimport 2026-06-09 05:01:52 UTC 
An integer overflow vulnerability exists in the evaluation logic of the Spring Expression Language (SpEL). An attacker can exploit this by supplying a specially crafted SpEL expression that triggers excessive resource consumption, resulting in a Denial of Service (DoS).

Affected versions:
Spring Framework 5.3.0 through 5.3.48.