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[Snyk] Security upgrade js-yaml from 4.1.1 to 4.3.2 - #13215

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[Snyk] Security upgrade js-yaml from 4.1.1 to 4.3.2#13215
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@sestinj sestinj commented Sep 2, 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):

  • extensions/cli/package.json

Vulnerabilities that will be fixed with an upgrade:

Issue Score
high severity Allocation of Resources Without Limits or Throttling
SNYK-JS-JSYAML-19496768
  828  

Breaking Change Risk

Merge Risk: Medium

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@sestinj
sestinj requested a review from a team as a code owner September 2, 2026 10:08
@sestinj

sestinj commented Sep 2, 2026

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Merge Risk: Medium

This minor version upgrade for js-yaml addresses several security vulnerabilities related to inefficient algorithmic complexity.

Key Changes:

  • Stricter Parsing: The update introduces stricter validation for merge keys (<<) and !!omap sequences to prevent potential Denial of Service (DoS) attacks. A maxTotalMergeKeys option has been backported to enforce limits. [1, 6, 7]
  • Behavioral Impact: While most users will not be affected, applications that parse very large or complex YAML files with a high number of merge keys may now encounter parsing errors that did not occur previously. This change in behavior warrants verification against your specific use case.

No API methods have been removed or changed in this version range. The risk is assessed as medium due to the new, stricter parsing behavior introduced for security hardening.

Source: Changelog

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

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