GHSA-8g8j-r87h-p36x · 深刻度: high · エコシステム: go — Vitess users with backup storage access can gain unauthorized access to production deployment environments
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 arbitrary code is later executed when that backup is restored. 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. Some workarounds are available. Those who intended to use an external decompressor then can always specify that decompressor command in the `--external-decompressor` flag value for `vttablet` and `vtbackup`. That then overrides any value specified in the manifest file. Those who did not intend to use an external decompressor, nor an internal one, can specify a value such as `cat` or `tee` in the `--external-decompressor` flag value for `vttablet` and `vtbackup` to ensure that a harmless command is always used.
総合評価: CVE-2026-27965 は中リスク(45.5/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.42%、33 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.42% | +0.36% |
| 2 | 2026-03-03 | 0.04% | 0.05% | +0.01% |
| 3 | 2026-02-26 | — | 0.04% | — |
EPSS の全履歴 (全 3 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.4 | 4.0 | HIGH |
|
— | — | [email protected] |
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
GHSA-8g8j-r87h-p36x · 深刻度: high · エコシステム: go — Vitess users with backup storage access can gain unauthorized access to production deployment environments
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linuxfoundation | vitess | < 22.0.4 | cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:* |
| linuxfoundation | vitess | >= 23.0.0, < 23.0.3 | cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/vitessio/vitess/commit/4c0173293907af9cb942a6683c465c3f1e9fdb5c | Patch |
| https://github.com/vitessio/vitess/issues/19459 | Issue Tracking |
| https://github.com/vitessio/vitess/pull/19460 | Issue Tracking Patch |
| https://github.com/vitessio/vitess/security/advisories/GHSA-8g8j-r87h-p36x | Mitigation Patch Vendor Advisory |