CVE-2026-6811
Description
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).
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
To mitigate this issue, avoid processing deeply nested BSON documents from untrusted or unverified sources with the MongoDB PHP driver. Ensure that applications only process BSON data originating from trusted MongoDB servers or other validated sources.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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