Bug 2400159 (CVE-2025-51495)

Summary: CVE-2025-51495 mongoose: Integer Overflow in Mongoose's WebSocket component
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A vulnerability was identified in the WebSocket component of Mongoose package versions 7.5 through 7.17. An attacker can exploit this flaw by sending a specially crafted request to a targeted application. Successful exploitation results in the application crashing, creating a denial of service. In certain cases where the component is integrated improperly by downstream products, this flaw could lead to a buffer overflow. This more severe condition could potentially allow an attacker to execute arbitrary code on the system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2401145, 2401149, 2401150, 2401151, 2401146, 2401147, 2401148    
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Description OSIDB Bzimport 2025-09-29 17:01:36 UTC 
An integer overflow vulnerability exists in the WebSocket component of Mongoose 7.5 thru 7.17. By sending a specially crafted WebSocket request, an attacker can cause the application to crash. If downstream vendors integrate this component improperly, the issue may lead to a buffer overflow.