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[Snyk] Security upgrade mongoose from 5.13.15 to 6.13.10 - #104

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[Snyk] Security upgrade mongoose from 5.13.15 to 6.13.10#104
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@cdobru

@cdobru cdobru commented Jul 27, 2026

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Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

  • package.json
  • package-lock.json

Vulnerabilities that will be fixed with an upgrade:

Issue Score
medium severity Prototype Pollution
SNYK-JS-MONGOOSE-18319533
  738  

Breaking Change Risk

Merge Risk: High

Notice: This assessment is enhanced by AI.


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@cdobru

cdobru commented Jul 27, 2026

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Merge Risk: High

The upgrade from Mongoose v5 to v6 is a major version jump with numerous breaking changes that require code modifications and careful testing.

Key Breaking Changes:

  • strictQuery is now true by default: Mongoose will now filter out any fields in a query that are not defined in the schema. [1] This can cause existing queries to return different results or no results at all. This behavior was a source of confusion and was later reverted in Mongoose 7. [1]
  • Connection Management: mongoose.connect() now returns a Promise, and connection options like useNewUrlParser, useUnifiedTopology, reconnectTries, and reconnectInterval are removed and no longer needed. [1, 2]
  • Model.exists() Behavior: This method no longer returns a boolean. Instead, it returns the lean document if it exists, or null if not. Code using if (await Model.exists(...)) will need to be updated. [1]
  • Removed Methods: execPopulate() has been removed. You should use await doc.populate() instead. [1]
  • Array Updates: Arrays are now ES6 Proxies, meaning you no longer need to call markModified() after updating an array element by its index. [1, 2]

Recommendation: This upgrade requires significant developer action. Developers must review the full migration guide, paying special attention to query behavior due to the strictQuery change, update connection logic, and audit the usage of changed methods like Model.exists().

Source: Mongoose 5.x to 6.x Migration Guide

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

@cdobru

cdobru commented Jul 27, 2026

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Snyk checks have failed. 4 issues have been found so far.

Status Scan Engine Critical High Medium Low Total (4)
Open Source Security 0 0 4 0 4 issues
Licenses 0 0 0 0 0 issues
Code Security 0 0 0 0 0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

@cdobru

cdobru commented Jul 27, 2026

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Snyk checks have failed. 4 issues have been found so far.

Status Scan Engine Critical High Medium Low Total (4)
Open Source Security 0 0 4 0 4 issues
Licenses 0 0 0 0 0 issues
Code Security 0 0 0 0 0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

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