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[Snyk] Security upgrade js-yaml from 4.2.0 to 5.2.2#434

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[Snyk] Security upgrade js-yaml from 4.2.0 to 5.2.2#434
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snyk-fix-21272c0195a21430a815d84fd7757bc4

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

Snyk changed the following file(s):

  • package.json
  • yarn.lock

Note for zero-installs users

If you are using the Yarn feature zero-installs that was introduced in Yarn V2, note that this PR does not update the .yarn/cache/ directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run yarn to update the contents of the ./yarn/cache directory.
If you are not using zero-install you can ignore this as your flow should likely be unchanged.

Vulnerabilities that will be fixed with an upgrade:

Issue Score
high severity Inefficient Algorithmic Complexity
SNYK-JS-JSYAML-18313070
  828  

Breaking Change Risk

Merge Risk: High

Notice: This assessment is enhanced by AI.


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  • Max score is 1000. Note that the real score may have changed since the PR was raised.
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@caniszczyk

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Merge Risk: High

The upgrade from js-yaml v4 to v5 is a major version with significant breaking changes that require code modifications.

Key Breaking Changes:

  • Module Imports: The package no longer has a default export. You must change how you import or require the library.

    • Before: const yaml = require('js-yaml'); yaml.load(...)
    • After (CommonJS): const { load } = require('js-yaml'); load(...)
    • After (ESM): import { load } from 'js-yaml'; load(...)
  • Safe Loading by Default: The safeLoad(), safeLoadAll(), and safeDump() functions have been removed. The standard load(), loadAll(), and dump() functions are now safe by default and should be used as direct replacements.

  • Default Schema Change: The default schema no longer supports merge keys (<<). If your YAML files use this feature, you will need to explicitly specify a schema that includes it.

  • Stricter load() Behavior: Calling load() with an empty string now throws an error instead of returning undefined.

  • Custom Types API: The API for defining custom types (new Type(...)) has been completely replaced by a new tags API.

Recommendation:
Developers must update import statements and replace calls to safeLoad/safeDump. Review any usage of merge keys (<<) or custom types, as they will require code changes to continue working. Thoroughly test all YAML parsing and serialization functionality after upgrading.

Source: v5 Migration Guide

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

@openshift-ci

openshift-ci Bot commented Jul 27, 2026

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: caniszczyk

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