Sample
rack-protection 4.2.1: Require explicit opt-in to enable session hijacking protection in Rack::Protection 4.x rather than relying on default middleware inclusion.
Verified sample for gem rack-protection 4.2.1: Require explicit opt-in to enable session hijacking protection in Rack::Protection 4.x rather than relying on…
sha256:211d7395fda74de66490b727f70e99004de2ff33d235445d7c9a625f290745c2
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 1
Declared environment
ruby linux x64 ruby ruby rubygems
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-16 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | SKIPPED | compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Require explicit opt-in to enable session hijacking protection in Rack::Protection 4.x rather than relying on default middleware inclusion.
- Packages
- Symbols
-
- Rack::Protection
- Rack::Protection::SessionHijacking
- Environment
- ruby
- Created
- 2026-08-16T16:38:09Z
Contract
- Rack::Protection.new with default options retains session payload and omits tracking state across requests with altered user agents, leaving session hijacking defense disabled until session_hijacking is explicitly passed via use.
- Passing use: :session_hijacking to Rack::Protection.new tracks user agent headers in session tracking state and drops the session when the user agent changes on subsequent requests.
Files
- Gemfile
- NOTES.md
- csx.json
- test/contract.rb