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Fix/codeql secure random - #53
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Replace Math.random-based session and local worker identifiers with 128-bit values generated by the Web Crypto API. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Keep secure session identifiers at the original nine-character length and limit the CodeQL fix to the affected session ID pattern. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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🟢 Approval recommended
The focused changes correctly replace predictable randomness consistently without altering session-monitoring behavior.
0 open findings
What changed in this PR
Replaces predictable session identifiers with cryptographically secure browser-generated values across all study templates.
Changes:
- Uses
crypto.getRandomValues()for session ID generation. - Preserves the existing nine-character session ID format.
| File | Description |
|---|---|
src/template/DCR_template.html |
Secures DCR session IDs. |
src/template/avatar_template.html |
Secures avatar session IDs. |
src/template/ACRHR_template.html |
Secures ACR-HR session IDs. |
src/template/ACR_template.html |
Secures ACR session IDs. |
🧠 Review effort: Balanced
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Vishak Gopal (vishakg)
approved these changes
Oct 8, 2026
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