CVE-2026-33555
5.8
MEDIUM
CVSS 3.1
EPSS 0.30%
描述
An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.
如何修補 CVE-2026-33555
要修補 CVE-2026-33555,請將受影響套件升級到下列已修補版本。
- —升級至 3.3.6 或更新版本
CVE-2026-33555 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 2.6.0, < 3.3.6
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N |