Bug 2555669 (CVE-2026-112368)

Summary: CVE-2026-112368 php-pecl-mongodb: php-pecl-mongodb: Denial of Service via uncontrolled recursion during BSON decoding
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the MongoDB PHP driver. An uncontrolled recursion vulnerability in the Binary JSON (BSON) decoding logic allows an unauthenticated remote attacker to cause a Denial of Service (DoS). By supplying specially crafted binary document data to the decoder, an attacker can exhaust the process stack, leading to an unexpected crash of the underlying PHP process.
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Bug Depends On: 2556351    
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Description OSIDB Bzimport 2026-10-19 16:04:02 UTC 
An uncontrolled recursion weakness in the BSON decoding logic of the MongoDB PHP driver may allow an unauthenticated party who can supply crafted binary document data to the decoder to exhaust the process stack. This may cause the PHP process using the driver to terminate unexpectedly, resulting in a loss of availability for that process. The condition occurs below the PHP layer and cannot be intercepted by application-level error handling.