js-yaml

5.5.0 · 15 Oct 2026MIT322.7M / weekRepository Homepage npm Atom feed

Same major only

2 releases in betweenevery note read

Other targets from 1.0.1Clears its 5 advisories3.15.0 Latest5.5.0

0
changes to make: 0
advisories fixed: 0
new: 3
fixes

Security

5 advisories still affect 1.0.3

js-yaml has prototype pollution in merge (<<)moderate · GHSA-mh29-5h37-fv8m
Deserialization Code Execution in js-yamlcritical · GHSA-xxvw-45rp-3mj2
Denial of Service in js-yamlmoderate · GHSA-2pr6-76vf-7546

Upgrading to 3.15.0 clears them.

Release by release

1.0.3
5 Nov 20121 fix
- fixed
  Fixed utf-8 files loading.
1.0.2
2 Aug 20122 fixes
- fixed
  Pull out hand-written shims. Use ES5-Shims for old browsers support. See #44.
- fixed
  Fix timstamps incorectly parsed in local time when no time part specified.

Upgrade to 1.0.3

npm install js-yaml@1.0.3

What 1.0.3 needs

Reading 1.0.3's manifest…

Check against your package.json

Which of your other dependencies stand in the way of 1.0.3. Read once, not stored.

After upgrading

Run the type checker, the linter and the tests.
Build, and look for new deprecation warnings.
Update peer dependencies the new version asks for.
5 advisories still affect 1.0.3.