CVE-2026-27969

High

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinuxfoundation Vitess
PublishedFeb 26, 2026
First seenFeb 26, 2026

How to fix

Update
  • linuxfoundation vitess22.0.4, 23.0.3 or later
  • vitess.io/vitess0.23.3, 0.22.4 or later

Affected products

ProductAffected versionsFixed in
linuxfoundation vitessv < 22.0.4, 23.0.0 ≤ v < 23.0.322.0.4, 23.0.3
vitess.io/vitessGo0.23.0-rc1 ≤ v < 0.23.3, v < 0.22.40.23.3, 0.22.4

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