Bug 2566171 (CVE-2026-120673)

Summary: CVE-2026-120673 rust-mongodb: rust-mongodb: Information disclosure via diagnostic tracing
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: unspecifiedCC: jcantril, rojacob
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the MongoDB Rust Driver. This vulnerability can lead to information disclosure when optional diagnostic tracing is enabled alongside automatic client-side field-level encryption. Because the driver captures command details prior to encryption, a user with read access to exported trace logs can observe sensitive plaintext data without possessing the encryption keys.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-03 19:58:38 UTC 
A component of the MongoDB Rust Driver that records diagnostic tracing data can capture command content before automatic client-side field level encryption is applied. In deployments that turn on the optional tracing capability together with automatic in-use encryption, a party with read access to the application's exported trace data may obtain field values that the application designated for encryption, without access to the encryption keys. This may result in unintended disclosure of data.