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CVE-2026-55569— aqua: Archive extraction in aqua follows attacker-planted symlinks, allowing writes outside the install directory

Quick assessment

Affected
aquaproj aqua
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Aqua 是一个用 Go 语言编写的声明式命令行版本管理器。在 2.60.1 版本之前， 中的 方法在调用 创建指向 的符号链接时，未验证目标路径是否仍位于解压目标目录之内。随后，当同一归档路径出现常规文件条目时，程序使用 和 标志通过 打开该文件，而 会跟随攻击者预先植根的符号链接。因此，恶意或已被篡改的软件包归档文件可以借助运行 aqua 用户的权限，将攻击者可控的数据写入 aqua 解压目录之外的位置，从而可能覆盖 Shell 启动文件、工具配置文件或可写的可执行文件路径。该问题已在 2.60.1 版本中修复

CVSS 6.6 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
aquaproj aqua < 2.60.1 affected
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I. Basic Information for CVE-2026-55569

Vulnerability Information
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Vulnerability Title
aqua: Archive extraction in aqua follows attacker-planted symlinks, allowing writes outside the install directory
Source: CVE Program / CVE List V5
Vulnerability Description
aqua is a declarative command-line version manager written in Go. Prior to 2.60.1, pkg/unarchive/archives.go in the handler.HandleFile method calls os.Symlink with archives.FileInfo.LinkTarget without verifying that the target remains under the extraction destination. A later regular-file entry at the same archive path is opened with OpenFile using O_CREATE and O_WRONLY, which follows the attacker-planted symlink. A malicious or compromised package archive can therefore write attacker-controlled bytes outside aqua's extraction directory with the privileges of the user running aqua, potentially overwriting shell startup files, tool configuration, or writable executable paths. This issue is fixed in version 2.60.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
aquaproj aqua < 2.60.1 -

II. Public POCs for CVE-2026-55569

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III. Intelligence Information for CVE-2026-55569

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Patches & Fixes for CVE-2026-55569 (1)

Vendor Advisories for CVE-2026-55569 (1)

Vendor Pages for CVE-2026-55569 (1)

IV. Related Vulnerabilities

Same product: aqua
Same weakness: CWE-22

V. Comments for CVE-2026-55569

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