apko affected by potential unbounded resource consumption in expandapk.ExpandApk on attacker-controlled .apk streams in chainguard.dev/apko

高 7.5CVE-2026-25140 · GHSA-f4w5-5xv9-85f6 · GO-2026-4410 · 04/02/2026 公開 · 17/06/2026 更新

要点

CVE-2026-25140 は chainguard.dev/apko, apko (chainguard) に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.41%（全脆弱性の 35.0% より高い）。
対処：1.1.1 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
chainguard.dev/apko Go	`≥ 0.14.8, < 1.1.1`	`1.1.1`
apko chainguard	`≥ 0.14.8, < 1.1.1`	`1.1.1`

概要

apko affected by potential unbounded resource consumption in expandapk.ExpandApk on attacker-controlled .apk streams in chainguard.dev/apko

NVD の説明

apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, an attacker who controls or compromises an APK repository used by apko could cause resource exhaustion on the build host. The ExpandApk function in pkg/apk/expandapk/expandapk.go expands .apk streams without enforcing decompression limits, allowing a malicious repository to serve a small, highly-compressed .apk that inflates into a large tar stream, consuming excessive disk space and CPU time, causing build failures or denial of service. This issue has been patched in version 1.1.1.