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CVE-2026-9747

Medium priority
Needs evaluation

Adding fromRouter:true and runtimeConstants.userRoles could cause aggregations to crash mongodb server.

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9746

Medium priority
Needs evaluation

When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9743

Medium priority
Needs evaluation

In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9742

Medium priority
Needs evaluation

When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9741

Medium priority
Needs evaluation

A bug in query analysis processing of the $vectorSearch aggregation stage for Queryable Encryption (QE) or Client-Side Field Level Encryption (CSFLE) results in literal values for encrypted fields within the $vectorSearch stage...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9740

Medium priority
Needs evaluation

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9735

Medium priority
Needs evaluation

MongoDB server may log authentication parameters, including credentials, to the server log during SASL authentication. When connection health metric logging is enabled, the full authentication parameters are written to the log...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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CVE-2026-9698

Medium priority
Needs evaluation

DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers...

1 affected package

libdbi-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libdbi-perl Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-10879

Medium priority
Needs evaluation

DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three...

1 affected package

libdbi-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libdbi-perl Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-8843

Medium priority
Needs evaluation

Creating a "2dsphere_bucket" index on a non-timeseries bucket collection will succeed, but any subsequent attempt to insert a document which triggers updating that index will crash the server. A similar issue occurs when creating...

1 affected package

mongodb

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mongodb Not in release Not in release Not in release Needs evaluation Needs evaluation
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