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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55569
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 20:18:29 UTC
Updated2026-09-01 02:16:58 UTC
Descriptionaqua 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.

Risk And Classification

Primary CVSS: v3.1 6.6 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

EPSS: 0.001420000 probability, percentile 0.038110000 (date 2026-08-31)

Problem Types: CWE-22 | CWE-59 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CWE-59 CWE-59: Improper Link Resolution Before File Access ('Link Following')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
3.1CNADECLARED6.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Aquaproj Aqua affected < 2.60.1 Not specified

References

ReferenceSourceLinkTags
github.com/aquaproj/aqua/releases/tag/v2.60.1 [email protected] github.com
github.com/aquaproj/aqua/security/advisories/GHSA-mf5c-hw34-4hpp 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/aquaproj/aqua/commit/d5b02b220188de376a661b3aabfa912202a1a59a [email protected] github.com
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