Alert 806 (js/insecure-randomness, open-sse/executors/tinycms.ts): the
TinyCMS nonce is signed into x-secure-signature and reused as
x-secure-nonce / x-session-id, so the Math.random() fallback made a
signed request predictable and replayable. Use randomUUID() from
node:crypto unconditionally.
Alert 811 (js/double-escaping, chatgpt-web adapters/environment.ts):
decodeXmlText() decoded & before " / ', so the bare & it
produced was re-consumed and the text was unescaped twice
(" collapsed to "). These values become the trusted Codex
sandbox cwd / workspace_roots, so the double-unescape silently rewrote
the workspace boundary. Decode & last.
Alerts 813/814 (js/incomplete-url-substring-sanitization, test files):
replace the includes() URL checks with exact comparisons
(new URL(url).hostname === ... and an explicit === over the recorded
URL array). Both assertions get strictly tighter.
Regression guards: tests/unit/tinycms-secure-nonce-randomness.test.ts
and tests/unit/chatgpt-web-environment-double-unescape.test.ts, both
failing before the fix and passing after.
Co-authored-by: backryun <bakryun0718@proton.me>
c19da4db46