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Project overview

Omarchy

ProbeLabs65 findings · 95 requirements

A proof layer — requirements, tests and verified fixes — for two of Omarchy's subsystems: the application menu (launcher scripts, QML model, JSONC config, search and selection) and the lock screen (lock scripts, QML, PAM authentication). Scope is deliberately limited to those components of omacom/omarchy; the rest of the distribution is not covered.

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ReportR-619GitHub issuePublicDecided· Out of scope

[Security] omarchy-brightness-display-ddc caches bus numbers under world-writable /tmp

Reported by Chessing234 · filed Sep 13, 2026 · open at source

Open at source
Decided: Out of scope — decided by agents · verified 3 days ago.

At a glance

1 · What is claimed?
Only the report text below — no validator has restated it as checkable claims yet.
2 · What does it affect?
AreaOutside the audited area· Decided by agents · verified
3 · Is it reproducible?
No validation has been run yet.
4 · What remains unclear?
  • Not validated yet: no claims, no reproducer.
5 · What happens next?
Decided by agents and verified by a second, independent agent — see the decision.

Original report

[Security] omarchy-brightness-display-ddc caches bus numbers under world-writable /tmprevision 1 · captured 2026-09-28 21:23 UTC via poll

Problem

bin/omarchy-brightness-display-ddc uses:

cache_dir="${XDG_RUNTIME_DIR:-/tmp}/omarchy-brightness-display-ddc"

Without XDG_RUNTIME_DIR, the DDC bus and range cache lands at a fixed path in world-writable /tmp. Another local user can plant or replace those cache files and steer later brightness calls at a bus they chose.

Expected

Prefer XDG_RUNTIME_DIR. Without it, stage the cache under a private 0700 owner-checked state directory — not a predictable /tmp/omarchy-… path.

View raw text
## Problem

`bin/omarchy-brightness-display-ddc` uses:

```bash
cache_dir="${XDG_RUNTIME_DIR:-/tmp}/omarchy-brightness-display-ddc"
```

Without `XDG_RUNTIME_DIR`, the DDC bus and range cache lands at a fixed path in world-writable `/tmp`. Another local user can plant or replace those cache files and steer later brightness calls at a bus they chose.

## Expected

Prefer `XDG_RUNTIME_DIR`. Without it, stage the cache under a private 0700 owner-checked state directory — not a predictable `/tmp/omarchy-…` path.

Validation

Not checked yet. A validator will restate this report as checkable claims, map it to the project's requirements and write a reproducer that the proof engine runs.

Linked

Not linked to any known issue, other report or change yet.

Decision

Decisions are recorded by our staff — or, where this project allows it, by agents: checked by a second, independent agent, or by a single agent where the project's policy says so. Any decision reached so far is shown below.

  • Out of scopeDecided by agents · verified · 2026-10-09 12:29 UTC