Bug 2477725 (CVE-2026-6811)

Summary: CVE-2026-6811 php: php-mongodb: MongoDB PHP driver: Denial of Service due to stack exhaustion when processing deeply nested BSON documents
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 flaw was found in the MongoDB PHP driver. This stack exhaustion vulnerability can lead to application crashes when the driver processes deeply nested BSON (Binary JSON) documents. This can occur in unusual circumstances when the BSON documents originate from a source other than a MongoDB server, potentially leading to a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2487466    
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Description OSIDB Bzimport 2026-05-14 22:02:17 UTC
Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is not MongoDB Server.