CVE-2026-42582
Netty HTTP/3 QPACK literal unbounded allocation
7.5
HIGH
CVSS 3.1
EPSS 0.44%
描述
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final, when decoding header blocks, the non-Huffman branch of io.netty.handler.codec.http3.QpackDecoder#decodeHuffmanEncodedLiteral may execute new byte[length] for a string literal before verifying that length bytes are actually present in the compressed field section. The wire encoding allows a very large length to be expressed in few bytes. There is no check that length <= in.readableBytes() before new byte[length]. This vulnerability is fixed in 4.2.13.Final.
如何修補 CVE-2026-42582
要修補 CVE-2026-42582,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 4.2.13.Final 或更新版本
CVE-2026-42582 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0
- >= 4.2.0.Final, < 4.2.13.Final
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |