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๐Ÿ›ก๏ธ Sentinel: [CRITICAL] API ํ‚ค ์œ ๋‹ˆ์ฝ”๋“œ DoS ์ทจ์•ฝ์  ์ˆ˜์ • - #308

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๐Ÿ›ก๏ธ Sentinel: [CRITICAL] API ํ‚ค ์œ ๋‹ˆ์ฝ”๋“œ DoS ์ทจ์•ฝ์  ์ˆ˜์ •#308
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sentinel-hmac-unicode-dos-fix-13744623657851308074

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@seonghobae

@seonghobae seonghobae commented Jul 29, 2026

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๐Ÿšจ Severity: CRITICAL
๐Ÿ’ก Vulnerability: hmac.compare_digest ํ•จ์ˆ˜๊ฐ€ ์œ ๋‹ˆ์ฝ”๋“œ ๋ฌธ์ž์—ด ์ฒ˜๋ฆฌ ์‹œ ๋ฐœ์ƒํ•˜๋Š” TypeError๋กœ ์ธํ•ด ์•…์˜์ ์ธ ํ—ค๋” ์ „์†ก ์‹œ ์„œ๋ฒ„ 500 ์—๋Ÿฌ๋ฅผ ์œ ๋ฐœํ•˜๋Š” ์„œ๋น„์Šค ๊ฑฐ๋ถ€(DoS) ์ทจ์•ฝ์ ์ด ๋ฐœ๊ฒฌ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
๐ŸŽฏ Impact: ๊ณต๊ฒฉ์ž๊ฐ€ ํŠน์ˆ˜ ๋ฌธ์ž๊ฐ€ ํฌํ•จ๋œ ์ธ์ฆ ํ—ค๋”๋ฅผ ์ง€์†์ ์œผ๋กœ ์ „์†กํ•˜์—ฌ ์„œ๋ฒ„ ๊ฐ€์šฉ์„ฑ์„ ์ €ํ•˜์‹œํ‚ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
๐Ÿ”ง Fix: ํ‚ค ๋น„๊ต ์ „์— ์ž…๋ ฅ๊ฐ’๊ณผ ์ €์žฅ๋œ ํ‚ค๋ฅผ ๋ช…์‹œ์ ์œผ๋กœ ๋ฐ”์ดํŠธ ํ˜•์‹(.encode('utf-8'))์œผ๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ์•ˆ์ „ํ•œ ๋น„๊ต๊ฐ€ ์ด๋ฃจ์–ด์ง€๋„๋ก ์ˆ˜์ •ํ–ˆ์Šต๋‹ˆ๋‹ค.
โœ… Verification: ์œ ๋‹ˆ์ฝ”๋“œ ๋ฌธ์ž๊ฐ€ ํฌํ•จ๋œ ํ—ค๋”๋ฅผ ์ „์†กํ•˜๋Š” ๋‹จ์œ„ ํ…Œ์ŠคํŠธ๋ฅผ ์ถ”๊ฐ€ํ•˜์—ฌ 401 ์‘๋‹ต์ด ์ •์ƒ์ ์œผ๋กœ ๋ฐ˜ํ™˜๋จ์„ ํ™•์ธํ–ˆ์Šต๋‹ˆ๋‹ค.


PR created automatically by Jules for task 13744623657851308074 started by @seonghobae

Summary by CodeRabbit

  • ๋ฒ„๊ทธ ์ˆ˜์ •

    • ์œ ๋‹ˆ์ฝ”๋“œ๊ฐ€ ํฌํ•จ๋œ ์ž˜๋ชป๋œ API ํ‚ค๋ฅผ ์ž…๋ ฅํ•ด๋„ ์„œ๋ฒ„ ์˜ค๋ฅ˜ ์—†์ด ์ •์ƒ์ ์œผ๋กœ 401 ์‘๋‹ต์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค.
    • API ํ‚ค ๋น„๊ต ์ฒ˜๋ฆฌ์˜ ์•ˆ์ •์„ฑ๊ณผ ๋ณด์•ˆ์„ฑ์ด ํ–ฅ์ƒ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
  • ํ…Œ์ŠคํŠธ

    • ์ด๋ชจ์ง€ ๋“ฑ ์œ ๋‹ˆ์ฝ”๋“œ API ํ‚ค๊ฐ€ ์•ˆ์ „ํ•˜๊ฒŒ ๊ฑฐ๋ถ€๋˜๋Š” ๊ฒ€์ฆ์„ ์ถ”๊ฐ€ํ–ˆ์Šต๋‹ˆ๋‹ค.
  • ๋ฌธ์„œ

    • API ํ‚ค ๋น„๊ต ์‹œ ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ๋Š” ์œ ๋‹ˆ์ฝ”๋“œ ์ฒ˜๋ฆฌ ์ทจ์•ฝ์ ๊ณผ ์˜ˆ๋ฐฉ ์กฐ์น˜๋ฅผ ๊ธฐ๋กํ–ˆ์Šต๋‹ˆ๋‹ค.

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Review Change Stack

No actionable comments were generated in the recent review. ๐ŸŽ‰

โ„น๏ธ Recent review info
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Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: ed0508c4-8d9f-4a10-9d08-f9185d32b8a2

๐Ÿ“ฅ Commits

Reviewing files that changed from the base of the PR and between 5a92586 and a9b148d.

๐Ÿ“’ Files selected for processing (4)
  • .jules/sentinel.md
  • create_pull_request_mock.sh
  • saas_web.py
  • tests/test_saas_web.py

๐Ÿ“ Walkthrough

Walkthrough

API ํ‚ค ๊ฒ€์ฆ์ด UTF-8 ๋ฐ”์ดํŠธ ๋น„๊ต๋ฅผ ์‚ฌ์šฉํ•˜๋„๋ก ๋ณ€๊ฒฝ๋˜์—ˆ๊ณ , ์œ ๋‹ˆ์ฝ”๋“œ ์ž…๋ ฅ์— ๋Œ€ํ•œ 401 ์‘๋‹ต ํ…Œ์ŠคํŠธ์™€ ์ทจ์•ฝ์  ๊ธฐ๋ก์ด ์ถ”๊ฐ€๋˜์—ˆ์Šต๋‹ˆ๋‹ค. PR ์ •๋ณด๋ฅผ ์ถœ๋ ฅํ•˜๋Š” Bash ์Šคํฌ๋ฆฝํŠธ๋„ ์ถ”๊ฐ€๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

Changes

API ํ‚ค ์œ ๋‹ˆ์ฝ”๋“œ ๊ฒ€์ฆ ์ˆ˜์ •

Layer / File(s) Summary
๋ฐ”์ดํŠธ ๊ธฐ๋ฐ˜ API ํ‚ค ๋น„๊ต์™€ ๊ฒ€์ฆ
saas_web.py, tests/test_saas_web.py, .jules/sentinel.md
API ํ‚ค ๋น„๊ต๋ฅผ UTF-8 ๋ฐ”์ดํŠธ๋กœ ๋ณ€๊ฒฝํ•˜๊ณ , ์œ ๋‹ˆ์ฝ”๋“œ ํ‚ค๊ฐ€ 401 ์‘๋‹ต์œผ๋กœ ๊ฑฐ๋ถ€๋˜๋Š” ํ…Œ์ŠคํŠธ์™€ ๊ด€๋ จ ์ทจ์•ฝ์  ๊ธฐ๋ก์„ ์ถ”๊ฐ€ํ–ˆ์Šต๋‹ˆ๋‹ค.

PR ์ƒ์„ฑ ๋ชจ์˜ ์Šคํฌ๋ฆฝํŠธ

Layer / File(s) Summary
PR ๋ฉ”์‹œ์ง€ ์ถœ๋ ฅ ์Šคํฌ๋ฆฝํŠธ
create_pull_request_mock.sh
PR ์ œ๋ชฉ, ์‹ฌ๊ฐ๋„, ์ทจ์•ฝ์ , ์˜ํ–ฅ, ์ˆ˜์ • ๋ฐ ๊ฒ€์ฆ ์ •๋ณด๋ฅผ ์ฝ˜์†”์— ์ถœ๋ ฅํ•ฉ๋‹ˆ๋‹ค.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

  • ContextualWisdomLab/codec-carver#303: ๋™์ผํ•œ API ํ‚ค ๋น„๊ต ๋ณ€๊ฒฝ๊ณผ ํ…Œ์ŠคํŠธ ๋ฐ ์ทจ์•ฝ์  ๋ฌธ์„œ ์ˆ˜์ •์„ ๋‹ค๋ฃน๋‹ˆ๋‹ค.
๐Ÿšฅ Pre-merge checks | โœ… 5
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Title check โœ… Passed ์ œ๋ชฉ์ด API ํ‚ค ์œ ๋‹ˆ์ฝ”๋“œ ์ž…๋ ฅ์œผ๋กœ ์ธํ•œ DoS ์ทจ์•ฝ์  ์ˆ˜์ •์ด๋ผ๋Š” ํ•ต์‹ฌ ๋ณ€๊ฒฝ์„ ์ •ํ™•ํ•˜๊ณ  ๊ตฌ์ฒด์ ์œผ๋กœ ์š”์•ฝํ•ฉ๋‹ˆ๋‹ค.
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Superseded by canonical PR #361, which contains the same Unicode-safe API-key comparison and expands the fix into the repository-required credential-registry and result-retention boundaries. Closing this duplicate.

@seonghobae seonghobae closed this Aug 7, 2026
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Superseded by canonical PR #361, which contains the same Unicode-safe API-key comparison and expands the fix into the repository-required credential-registry and result-retention boundaries. Closing this duplicate.

Understood. Acknowledging that this work is superseded and closing the pull request.

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