CVE-2026-77620— Vector: Unauthenticated denial of service in the `logstash` source via nested compressed frames (stack exhaustion and decompression amplification).
一分钟漏洞结论
影响对象
vectordotdev vector
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source feeds each decompressed frame back into its decoder without limiting nested compression depth. An unauthenticated remote peer that can reach the default 0.0
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| vectordotdev | vector | >= 0.15.0, < 0.57.0 |
affected |
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一、 漏洞 CVE-2026-77620 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Vector: Unauthenticated denial of service in the `logstash` source via nested compressed frames (stack exhaustion and decompression amplification).
来源: CVE Program / CVE List V5
Vulnerability Description
Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source feeds each decompressed frame back into its decoder without limiting nested compression depth. An unauthenticated remote peer that can reach the default 0.0.0.0:5044 listener can send many nested compressed frames, causing recursive decoding that exhausts the worker thread stack and aborts the process. The same nested construction amplifies decompressed input, and process termination can halt log ingestion for every tenant on a shared pipeline. This issue is fixed in version 0.57.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| vectordotdev | vector | >= 0.15.0, < 0.57.0 | - |
|
二、漏洞 CVE-2026-77620 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-77620 补丁与修复 (2)
CVE-2026-77620 其他参考 (2)
-
Release v0.57.0 · vectordotdev/vector · GitHub x_refsource_MISC
同批安全公告 · vectordotdev · 2026-09-22 · 共 3 条
| CVE-2026-77621 | 9.3 CRITICAL | Vector: Arbitrary file write in the file sink via templated path (path traversal). |
| CVE-2026-77619 | 8.7 HIGH | Vector: Unauthenticated denial of service in the `logstash` source via unbounded memory al |
IV. Related Vulnerabilities
V. Comments for CVE-2026-77620
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