Skip to content
OpenAdvisories
Critical · 9.3 CVE-2026-27969 EUVD-2026-8821GHSA-r492-hjgh-c9gwGO-2026-4570

Vitess users with backup storage access can write to arbitrary file paths on restore

Published Feb 26, 2026 · Updated Feb 26, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
vitessio vitess < 22.0.4, >= 23.0.0, < 23.0.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1
openSUSE Leap 15.6 govulncheck-vulndb 0.0.20260317T205859-150000.1.152.1 SUSE-SU-2026:1042-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 vitess 19.0.4-9 —
Azure Linux 2 (CBL-Mariner) vitess No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
Go vitess.io/vitess >= 0.23.0-rc1, < 0.23.3 0.23.3 GHSA-r492-hjgh-c9gw
Go vitess.io/vitess < 0.22.4 0.22.4 GHSA-r492-hjgh-c9gw
Go vitess.io/vitess < 0.22.4 · >= 0.23.0-rc1, < 0.23.3 0.22.4, 0.23.3 GO-2026-4570

Advisories 2

References