Vitess users with backup storage access can write to arbitrary file paths in vitess.io/vitess
Vitess users with backup storage access can write to arbitrary file paths on restore in vitess.io/vitess
02 / AFFECTED SOFTWARE
Affected packages
42 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
### 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](https://owasp.org/www-community/attacks/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
Vitess users with backup storage access can write to arbitrary file paths on restore in vitess.io/vitess
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.
05 / REFERENCES
Further evidence
- https://github.com/vitessio/vitess
- https://github.com/vitessio/vitess/commit/c565cab615bc962bda061dcd645aa7506c59ca4a
- https://github.com/vitessio/vitess/pull/19470
- https://github.com/vitessio/vitess/security/advisories/GHSA-r492-hjgh-c9gw
- https://nvd.nist.gov/vuln/detail/CVE-2026-27969
- https://owasp.org/www-community/attacks/Path_Traversal
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27969.json