EUVD-2026-98820

MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access...

CVE-2026-104004 Collection validators using collation-accepting expressions can crash MongoDB Server on insert

MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access...

CVE-2026-103965 Fixed values in MongoDB Server $bucket stage may be misread as field references

An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return...

CVE-2026-103965

An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return...

CVE-2026-103965

The MongoDB Server aggregation framework contains a vulnerability where certain constant values are handled incorrectly during internal query rewriting. Specifically, fixed values in the $bucket stage may be misread as field references . This flaw allows an authenticated user with read access to ...

CVE-2026-96299 Missing Authorization Check on Internal Aggregation Stage in MongoDB Server mongos Leads to Denial of Service

A security issue was discovered in MongoDB mongos the sharded cluster router where an authenticated user with readWrite privileges could crash the mongos process by crafting a specially formed aggregation pipeline. The issue leverages an internal aggregation stage that lacks proper authorization...

CVE-2026-96299

The MongoDB Server is vulnerable to a memory exhaustion (OOM ) condition due to missing resource limits in the match expression evaluator . The flaw allows an authenticated user with read-only privileges to execute an aggregation query using nested internal schema validation operators (intended f...

CVE-2026-96299

A security issue was discovered in MongoDB mongos the sharded cluster router where an authenticated user with readWrite privileges could crash the mongos process by crafting a specially formed aggregation pipeline. The issue leverages an internal aggregation stage that lacks proper authorization...

CVE-2026-96297

The MongoDB Server is vulnerable to a Use After Free (CWE-416) condition within its aggregation feature . When an internal aggregation stage is used in conjunction with a batch size of 0 , the server may read from memory areas that have already been released. This flaw allows an authenticated use...

CVE-2026-96297

Use of freed memory in the aggregation feature of MongoDB Server can cause the server to read data from a memory area after it has been released. When an internal aggregation stage is combined with a batch size of 0, the server may read from memory that is no longer in use. Because that memory ca...

CVE-2026-96297 MongoDB Server may disclose process memory via a crafted `$_internalApplyOplogUpdate` aggregation pipeline

Use of freed memory in the aggregation feature of MongoDB Server can cause the server to read data from a memory area after it has been released. When an internal aggregation stage is combined with a batch size of 0, the server may read from memory that is no longer in use. Because that memory ca...

CVE-2026-109954

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954

Parse Server versions 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 are vulnerable to a race condition (CWE-362) where transactional batch state is shared across concurrent requests. This allows a client's transactional batch request to interfere with other clients' database writes. On Post...

CVE-2026-109954 Parse Server 9.0.0 before 9.10.2-alpha.5 Transactional Batch Request Write Interference

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-104004: NULL Pointer Dereference

MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access...

CVE-2026-109954: Concurrent Execution using Shared Resource with Improper Synchronization

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

PT-2026-111668

🚨 CVE-2026-96297 Use of freed memory in the aggregation feature of MongoDB Server can cause the server to read data from a memory area after it has been released. When an internal aggregation stage is combined with a batch size of 0, the server may read from memory that is no longer in use. Becau...

CVE-2026-103965: Improper Control of Generation of Code

An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return...

CVE-2026-104005: Reachable Assertion

A security issue was discovered in MongoDB mongos the sharded cluster router where an authenticated user with readWrite privileges could crash the mongos process by crafting a specially formed aggregation pipeline. The issue leverages an internal aggregation stage that lacks proper authorization...