Security bump for CVE-2026-45363 (High, empty-key HMAC bypass). Not
exposed: jwt reaches campfire only via web-push VAPID signing, which uses
ES256 (asymmetric ECDSA), not HMAC — the vulnerable JWA::Hmac path is
unreachable. web-push requires jwt ~> 3.0; minor bump, encode API
unchanged.
Transitive dep (no Gemfile change). 15 commits analyzed, 0 mitigations.
https://github.com/basecamp/37signals-hq/blob/main/upgrade-analysis/campfire-20260609-jwt_v3.1.2..v3.2.0.md🤖 Assisted by Claude
Security bump for CVE-2026-33306 (integer overflow → zero KDF iterations
at Cost=31). Not exposed: JRuby-only bug; campfire runs MRI (Ruby 3.4.5),
no java platform in lockfile, ActiveModel default cost is 10-12.
Direct gem (no version constraint, unchanged). 33 commits analyzed,
2 no-action mitigations (constant-time password compare hardening on the
has_secure_password path) — auth tests green.
https://github.com/basecamp/37signals-hq/blob/main/upgrade-analysis/campfire-20260609-bcrypt_v3.1.20..v3.1.22.md🤖 Assisted by Claude
Security bump for CVE-2026-35611 (High, ReDoS in Addressable::Template).
Not exposed: campfire never reaches Addressable::Template — runtime use
is geared_pagination's URI.parse; templates appear only in webmock test
stubs (all string/Regexp, never templates).
Transitive dep (no Gemfile change). 49 commits analyzed, 0 mitigations.
https://github.com/basecamp/37signals-hq/blob/main/upgrade-analysis/campfire-20260609-addressable_2.8.7..2.9.0.md🤖 Assisted by Claude
Security bump for CVE-2025-58767 (DoS on malformed XML). Conservative
update landed 3.4.4 (latest patch, above advisory floor of 3.4.2).
Test/build-only transitive dep (webmock→crack, selenium-webdriver);
absent from app runtime. 34 commits analyzed, 1 test-only mitigation
(no-root-element parse change) — verified green via full unit + system
test suites.
https://github.com/basecamp/37signals-hq/blob/main/upgrade-analysis/campfire-20260609-rexml_3.4.1..3.4.4.md🤖 Assisted by Claude
* Add GitHub Actions audit job (actionlint + zizmor) to CI
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Configure dependabot for GitHub Actions, bundler, and Docker
Batches all action updates into a single weekly PR. Adds cooldown
periods to all ecosystems.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Add local GitHub Actions linting (actionlint + zizmor) to bin/setup and bin/ci
Install actionlint, shellcheck, and zizmor in bin/setup. Run both
linters as CI steps in config/ci.rb alongside existing style checks.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Pin all GitHub Actions to SHA hashes
Run pinact to pin action versions to specific commit SHAs,
preventing supply chain attacks from tag mutation.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Fix high severity zizmor findings
- Suppress unpinned-images for redis service containers (digest
pinning is nontrivial for service containers)
- Move workflow-level permissions to job-level in publish-image.yml
(build gets full set, manifest gets only what it needs)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Fix medium severity zizmor findings
- Add persist-credentials: false to all checkout steps
- Add permissions: {} at workflow level in ci.yml
- Add job-level permissions (contents: read) to all CI jobs
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Fix informational template-injection findings in publish-image.yml
Move steps.meta.outputs.tags from inline ${{ }} expressions to env
vars in both the manifest creation and cosign signing steps.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Update brakeman to 8.0.4
bin/brakeman uses --ensure-latest which fails if not on the newest version.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Adds ipv4_mapped? and ipv4_compat? checks to PrivateNetworkGuard.private_ip?
to block SSRF bypass attempts using IPv6 address formats like:
- ::ffff:169.254.169.254 (IPv4-mapped)
- ::169.254.169.254 (IPv4-compatible)
These formats could previously bypass the link_local? check since Ruby
treats them as IPv6 addresses, not IPv4.
Ref: HackerOne #3481701
Mike Dalessio
Stanko Krtalić
Eric Hiler
Rosa Gutierrez
Jeremy Daer
Mike Dalessio
Jason Zimdars
Ashwin M
Michael Halliday
David Heinemeier Hansson