要点
- CVE-2026-27969 は vitess.io/vitess, vitess (linuxfoundation) に影響する深刻度「高」 (CVSS 8.8) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.54%（全脆弱性の 45.5% より高い）。
- 対処：0.23.3, 0.22.4, 23.0.3, 22.0.4 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| vitess.io/vitess Go | ≥ 0.23.0-rc1, < 0.23.3< 0.22.4
| 0.23.30.22.4
|
| vitess | ≥ 23.0.0, < 23.0.3< 22.0.4
| 23.0.322.0.4
|
概要
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
NVD の説明
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.
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