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Open-source package vulnerability · Go

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

criticalCVSS 4.0 9.3GHSA-r492-hjgh-c9gw

Impact 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.

Published Feb 27, 2026

Affected packages

vitess.io/vitess

Ecosystem
Go
Affected
>= 0.23.0-rc1, < 0.23.3
Fixed in
0.23.3
Check
go list -m vitess.io/vitess

vitess.io/vitess

Ecosystem
Go
Affected
< 0.22.4
Fixed in
0.22.4
Check
go list -m vitess.io/vitess

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Impact

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.

Patches

v23.0.3 and v22.0.4

Resources

https://github.com/vitessio/vitess/pull/19470

Credited to NeuroWinter.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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