Remediate 2 CVEs in yard

[eng-cve-remediation-app]

This PR contains the following updates:

Package	Type	Update	Change
yard:yard	dependencies	security	0.9.36 → 0.9.44

Dependency paths

• puppet_litmus:puppet_litmus → bolt:bolt → puppet-strings:puppet-strings → yard:yard
• puppet-strings:puppet-strings → yard:yard
• bolt:bolt → puppet-strings:puppet-strings → yard:yard

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	Vulnerability
Medium	5.3	CVE-2026-41493
Medium	5.3	CVE-2026-49342

---

Bump strategy

yard is a transitive dependency (blocked-upstream), pulled in via puppet-strings
(a direct Gemfile dependency, group :development, :release_prep).

puppet-strings's newest release (5.1.0) drops its yard upper bound, but it
cannot be used here: bolt (already at its own newest release, 4.0.0, with no
newer release available) hard-caps puppet-strings >= 2.3.0, < 5.0, and
bolt is pulled in transitively via puppet_litmus. puppet-strings 4.1.3
(the previously-locked version) also can't work — it added a hard cap
yard ~> 0.9, < 0.9.37, which excludes every fixed yard release.

puppet-strings 4.1.2 (one patch release older than what was locked) has no
upper bound on yard at all (~> 0.9) and still satisfies bolt's
< 5.0 constraint. Pinning Gemfile to >= 4.1.2, '< 4.1.3' and re-locking
resolves yard to 0.9.45 (>= fix_version 0.9.44), fixing both CVEs without
any conflict.

No cohort siblings — puppet-strings and yard are independently released.

[eng-cve-remediation-app]

🔎 Dependency bump analysis

Breaking changes: false · Reachability: no

---

Impact report

Changelog / Breaking-Change Report

Summary

This PR fixes CVE-2026-41493 and CVE-2026-49342 (both path-traversal in
YARD's built-in doc server, yard server --docroot) by transitively bumping
yard from 0.9.36 to 0.9.45. yard is not a direct dependency of this
repo — the actual edit is to the Gemfile constraint on its parent,
puppet-strings, per the blocked-upstream bump procedure. Verdict:
not breaking for this repo. puppet-strings and yard are both
dev/release_prep-only tooling (used to generate REFERENCE.md), never
shipped or loaded at Puppet runtime, and neither library's changelog between
the old and new versions documents a breaking change that touches how this
repo uses them.

The actual diff

group :development, :release_prep do
-  gem "puppet-strings", '~> 4.0',              require: false
+  gem "puppet-strings", '>= 4.1.2', '< 4.1.3', require: false

Gemfile.lock confirms the resolution:

Gem	Before	After
puppet-strings	~> 4.0 (resolved ~4.0.x)	pinned to exactly 4.1.2
yard (transitive, via puppet-strings)	0.9.36	0.9.45

Note the unusual exact pin (>= 4.1.2, < 4.1.3) rather than "newest
available." This is deliberate, not a shortcut — see Why not the newest
puppet-strings? below.

Upstream changes

puppet-strings 4.0.0 → 4.1.2

Version	Date	Changes
4.1.0	2023-07-04	Added --providers / --list-providers flags (additive)
4.1.1	2023-11-22	Bug fix: option-tag handling with no data types
4.1.2	2023-12-05	Bug fix: revert a rubocop-driven change incompatible with Ruby 2.7.0

No removed APIs, no signature changes, no minimum-Ruby bump (still requires
Ruby >= 2.7.0, Puppet >= 7.0.0). Not breaking.

yard 0.9.36 → 0.9.45 (transitive)

Version	Notable change
0.9.40	⚠️ Changelog-labeled "Breaking Change": removed jQuery from default HTML doc templates (jQuery lib itself retained for back-compat). Also added .rbs file support, built-in HybridMarkdown renderer.
0.9.42	Security fix — CVE-2026-41493: path traversal via --docroot + disk caching in yard server (GHSA-xfhh-rx56-rxcr)
0.9.43	Bug fix: .rbs attribute registration
0.9.44	Security fix — CVE-2026-49342: path traversal via --docroot + disk caching in yard server (GHSA-pxcc-8665-phx8)
0.9.45	Bug/compat fixes (RDoc 8, Struct.new/Data.define doc tags, HTML/RBS rendering)

The only changelog-flagged "breaking" item (0.9.40, jQuery removal) is scoped
to generated HTML template assets, not the YARD public Ruby API.

Why not the newest puppet-strings?

The newest published releases are not safe substitutes here, which is
why the diff pins exactly 4.1.2:

• puppet-strings 4.1.3 (2024-09-05) re-pins yard to < 0.9.37 —
  taking this release would make it impossible to resolve the fixed
  yard (>= 0.9.42), defeating the CVE fix.
• puppet-strings 5.0.0 (2025-06-09) is a labeled breaking release
  ("removed Puppet 7 infrastructure", puppet promoted to a runtime
  dependency).
• puppet-strings 5.1.0 (2026-08-14) adds Ruby 4.0 / Puppet 9 support.

So 4.1.2 is the correct target: newest release that still carries an
unpinned yard (~> 0.9) constraint, letting Bundler resolve straight to the
patched 0.9.45. Gemfile.lock:246-248,436 confirms puppet-strings (4.1.2) → yard (~> 0.9) → yard (0.9.45) resolved correctly.

How we use it

• Rakefile:7 — require 'puppet-strings/tasks' if Gem.loaded_specs.key? 'puppet-strings'. This wires up the standard strings:generate /
  strings:validate:reference rake tasks used to build REFERENCE.md.
  Output format is plain Markdown, not yard's HTML templates, so the
  0.9.40 jQuery/HTML-template change is inapplicable regardless.
• No custom YARD tags, plugins, @!macro/@!method directives, or direct
  YARD:: API calls exist anywhere in this repo (checked via grep).
• Both gems live only in the Gemfile's group :development, :release_prep
  — never loaded by the shipped Puppet module code, never invoked in the
  ci.yml/nightly.yml workflows (no strings: task reference found
  there); used only for local/release-prep doc regeneration.
• puppet-strings is also reachable transitively via bolt and
  puppet_litmus (per unit.json's dependency_paths), but this repo's
  Gemfile.lock resolves puppet-strings to a single version (4.1.2)
  across the whole tree, so there's no split-cohort concern — one pinned
  version satisfies every path to yard.

Action items / risks

None. This is a dev-tooling-only, non-breaking transitive bump:

• No code changes required in this repo.
• REFERENCE.md regeneration (bundle exec rake strings:generate) is
  unaffected — Markdown output, no custom tags in use.
• No other puppet-strings/yard version in the lockfile is left behind
  (single resolved version across all dependency paths), so there's no
  cohort split to flag.

References

• puppet-strings CHANGELOG.md
• puppet-strings releases
• yard CHANGELOG.md
• GHSA-xfhh-rx56-rxcr (CVE-2026-41493)
• GHSA-pxcc-8665-phx8 (CVE-2026-49342)

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[bastelfreak]

those nonsense AI PRs are extremely annoying> I mentioned more than enough why they are bad.

[eng-cve-remediation-app]

The fix-ci agent made no change this run while CI is red. The reconcile sweep will escalate this PR to a human rather than retry.

[eng-cve-remediation-app]

🚨 fix-ci circuit open — a fix attempt made no progress. The bot has stopped auto-fixing CI on this PR; it needs a human.

[eng-cve-remediation-app]

This PR pins puppet-strings directly in this repo's Gemfile to fix CVE-2026-41493/CVE-2026-49342 (via yard), but puppet-strings is one of the ~26 gems this module's Gemfile actually gets rendered from puppetlabs/pdk-templates' Gemfile.erb (see metadata.json's template-url) — a direct edit here is reverted on the next pdk update. The underlying yard cap (puppet-strings 4.1.3 pinned yard < 0.9.37) was already fixed upstream in pdk-templates on 2026-08-20 (widened to < 6.0); this module just hasn't re-synced from the template yet, which is the actual remediation path. Closing without merging — the bot's own triage rule for template-generated gems had a stale curated list that missed puppet-strings (puppetlabs/cve-remediation-bot#168 fixes it going forward). Thanks for flagging this, @bastelfreak.