fix: use cryptographic randomness and restrictive permissions for temp files#40
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0x-SquidSol wants to merge 1 commit intonullxnothing:mainfrom
Closed
fix: use cryptographic randomness and restrictive permissions for temp files#400x-SquidSol wants to merge 1 commit intonullxnothing:mainfrom
0x-SquidSol wants to merge 1 commit intonullxnothing:mainfrom
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…p files Temp files in ClaudeProvider and CodexProvider used Date.now() for filenames (predictable) and default permissions (world-readable). Replaced with crypto.randomUUID() for unpredictable names and mode 0o600 for owner-only access, preventing local information disclosure of sensitive agent context and system prompts. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Closed as superseded by #75, which reapplies the corrected security hardening on top of current main. This avoids merging stale/conflicted branches and preserves the fixes with passing CI/CodeQL. |
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Summary
Date.now()for filenames (predictable, enumerable) and default permissions (world-readable on Unix)Date.now()withcrypto.randomUUID()for unpredictable filenames across all 5 creation pointsmode: 0o600(owner read/write only) to all 4writeFileSynccallsTest plan
pnpm run typecheck— passes cleanpnpm run test— all wallet tests pass (19/19)