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+**NOTE** This is an issue template to standardise our process for responding to and fixing critical security and privacy vulnerabilities, exploits, etc.
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+
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+## Information
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+
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+### Related Issue
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+- tor-browser#AAAAA
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+- mullvad-browser#BBBBB
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+- tor-browser-build#CCCCC
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+
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+#### Affected Platforms
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+
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+- [ ] Android
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+- [ ] Desktop
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+  - [ ] Windows
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+  - [ ] macOS
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+  - [ ] Linux
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+
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+### Type of Issue: What are we dealing with?
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+
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+- [ ] Security (sandbox escape, remote code execution, etc)
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+- [ ] Proxy Bypass (traffic contents becoming MITM'able)
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+- [ ] De-Anonymization (otherwise identifying which website a user is visiting)
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+- [ ] Cross-Site Linkability (correlating sessions across circuits and websites)
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+- [ ] Disk Leak (persisting session information to disk)
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+- [ ] Other (please explain)
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+
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+### Involvement: Who needs to be consulted and or involved to fix this?
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+
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+- [ ] Applications Developers
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+  - [ ] **boklm** : build, packaging, signing, release
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+  - [ ] **clairehurst** : Android, macOS
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+  - [ ] **dan** : Android, macOS
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+  - [ ] **henry** : accessibility, frontend, localisation
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+  - [ ] **ma1** : firefox internals
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+  - [ ] **pierov** : updater, fonts, localisation, general
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+  - [ ] **richard** : signing, release
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+  - [ ] **thorin** : fingerprinting
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+- [ ] Other Engineering Teams
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+  - [ ] Networking (**ahf**, **dgoulet**)
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+  - [ ] Anti-Censorship (**meskio**, **cohosh**)
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+  - [ ] UX (**donuts**)
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+  - [ ] TPA (**anarcat**, **lavamind**)
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+- [ ] External Tor Partners
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+  - [ ] Mozilla
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+  - [ ] Mullvad
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+  - [ ] Brave
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+  - [ ] Guardian Project (Orbot, Onion Browser)
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+  - [ ] Tails
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+  - [ ] Other (please list)
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+
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+### Urgency: When do we need to act?
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+
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+- [ ] **ASAP** :rotating_light: Emergency release :rotating_light:
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+- [ ] Next scheduled stable
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+- [ ] Next scheduled alpha, then backport to stable
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+- [ ] Next major release
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+- [ ] Other (please explain)
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+
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+#### Justification
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+
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+<!-- Provide some paragraph here justifying the logic behind our estimated urgency -->
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+
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+### Side-Effects: Who will be affected by a fix for this?
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+Sometimes fixes have side-effects: users lose their data, roadmaps need to be adjusted, services have to be upgraded, etc. Please enumerate the known downstream consequences a fix to this issue will likely incur.
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+- [ ] End-Users (please list)
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+- [ ] Internal Partners (please list)
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+- [ ] External Partners (please list)
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+
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+## Todo:
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+
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+### Communications
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+
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+- [ ] Start an initial email thread with the following people:
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+  - [ ] **bella**
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+  - [ ] Relevant Applications Developers
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+  - [ ] **(Optional)** **micah**
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+    - if there are considerations or asks outside the Applications Team
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+  - [ ] **(Optional)** Other Team Leads
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+    - if there are considerations or asks outside the Applications Team
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+  - [ ] **(Optional)** **gazebook**
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+    - if there are consequences to the organisation or partners beyond a browser update, then a communication plan may be needed
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+
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+/cc @bella
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+/cc @ma1
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+/cc @micah
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+/cc @richard
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+
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+/confidential
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+
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+Godspeed! :pray:  |