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CVE-2026-27969— Vitess users with backup storage access can write to arbitrary file paths on restore

Quick assessment

Affected
vitessio vitess
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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之前版本存在路径遍历漏洞，该漏洞源于备份清单文件可被操纵，可能导致路径遍历攻击。

AI Predicted 8.8 Difficulty: Easy EPSS 0.60% · P47
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I. Basic Information for CVE-2026-27969

Vulnerability Information
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Vulnerability Title
Vitess users with backup storage access can write to arbitrary file paths on restore
Source: CVE Program / CVE List V5
Vulnerability Description
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 files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. 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. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:L/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Vitess 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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之前版本存在路径遍历漏洞，该漏洞源于备份清单文件可被操纵，可能导致路径遍历攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vitessio vitess < 22.0.4 -

II. Public POCs for CVE-2026-27969

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III. Intelligence Information for CVE-2026-27969

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IV. Related Vulnerabilities

Same product: vitess
Same vendor: vitessio
Same weakness: CWE-22

V. Comments for CVE-2026-27969

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