CVE-2026-42154 漏洞深度分析

漏洞概述

CVE 编号： CVE-2026-42154
CVSS 评分： 7.5（HIGH）
CVSS 向量： CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE 分类： CWE-400,CWE-789,CWE-770
漏洞状态： Modified
发布时间： 2026-05-04T19:16:04.397
最后更新： 2026-07-14T12:17:05.337

漏洞描述

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

1. 及时关注厂商发布的安全更新和补丁
2. 升级受影响组件到最新版本
3. 如无法立即升级，参考厂商提供的临时缓解措施
4. 加强网络访问控制和监控

参考链接

1. https://github.com/prometheus/prometheus/pull/18584
2. https://github.com/prometheus/prometheus/pull/18585
3. https://github.com/prometheus/prometheus/releases/tag/v3.11.3
4. https://github.com/prometheus/prometheus/releases/tag/v3.5.3
5. https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm