CVE-2026-27965— Vitess 操作系统命令注入漏洞

Vitess users with backup storage access can gain unauthorized access to production deployment environments

Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that arbitrary code is later executed when that backup is restored. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. Some workarounds are available. Those who intended to use an external decompressor then can always specify that decompressor command in the `--external-decompressor` flag value for `vttablet` and `vtbackup`. That then overrides any value specified in the manifest file. Those who did not intend to use an external decompressor, nor an internal one, can specify a value such as `cat` or `tee` in the `--external-decompressor` flag value for `vttablet` and `vtbackup` to ensure that a harmless command is always used.

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OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

Vitess 操作系统命令注入漏洞

Vitess是Vitess开源的一个用于水平扩展 MySQL 的数据库集群系统。 Vitess 23.0.3之前版本和22.0.4之前版本存在操作系统命令注入漏洞，该漏洞源于备份清单文件可被操纵，可能导致执行任意代码。

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