GHSA-9298-4cf8-g4wj · 深刻度： critical · エコシステム： pip — Waitress has request processing race condition in HTTP pipelining with invalid first request
Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recv_bytes (defaults to 8192) long, followed by a secondary request using HTTP pipelining. When request lookahead is disabled (default) we won't read any more requests, and when the first request fails due to a parsing error, we simply close the connection. However when request lookahead is enabled, it is possible to process and receive the first request, start sending the error message back to the client while we read the next request and queue it. This will allow the secondary request to be serviced by the worker thread while the connection should be closed. Waitress 3.0.1 fixes the race condition. As a workaround, disable channel_request_lookahead, this is set to 0 by default disabling this feature.
総合評価: CVE-2024-49768 は中リスク（49.7/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 0.49%、38 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.57% | 0.49% | -0.08% |
| 2 | 2026-05-25 | 0.52% | 0.57% | +0.06% |
| 3 | 2026-05-12 | — | 0.52% | — |
EPSS の全履歴 （全 16 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 9.1 | 3.1 | CRITICAL |
|
3.9 | 5.2 | [email protected] |
| 4.8 | 3.1 | MEDIUM |
|
2.2 | 2.5 | [email protected] |
GHSA-9298-4cf8-g4wj · 深刻度： critical · エコシステム： pip — Waitress has request processing race condition in HTTP pipelining with invalid first request
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2024-49768 unimportant priority: Debian including 1 source packages (waitress), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-49768 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-49768 |
suse
|
high | CVE-2024-49768 severity important: SUSE including 8 source package names (python-waitress, python2-waitress, …), 55 product×package rows across 27 product lines (SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (27 product lines)): Known Not Affected 35, Fixed 20. | https://www.suse.com/security/cve/CVE-2024-49768/ |
ubuntu
|
medium | CVE-2024-49768 medium priority: Ubuntu including 1 source packages (waitress), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): not-affected 6, released 3. | https://ubuntu.com/security/CVE-2024-49768 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| agendaless | waitress | >= 2.0.0, < 3.0.1 | cpe:2.3:a:agendaless:waitress:*:*:*:*:*:*:*:* |