CVE-2026-55569Public exploitHinoki check available

Arbitrary file write via symlink-following archive extraction

Published Aug 28, 2026 · Updated Aug 28, 2026

Path traversal in aquaproj aqua before 2.60.1 allows attackers to write files outside the extraction directory through crafted archives. The HandleFile method creates an unchecked archive-supplied symlink, then opens a regular-file entry at the same path in a mode that follows that link. A user must make aqua install a malicious or compromised package archive; writes remain limited to paths writable by the aqua process.

CVSS severity6.6
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in aquaproj aqua before 2.60.1 allows attackers to write files outside the extraction directory through crafted archives. The HandleFile method creates an unchecked archive-supplied symlink, then opens a regular-file entry at the same path in a mode that follows that link. A user must make aqua install a malicious or compromised package archive; writes remain limited to paths writable by the aqua process.

The record

CVE
CVE-2026-55569
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
aquaproj
Product
aqua
Classifications
CWE-22, CWE-59, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.60.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

aquaproj · aquaversion=< 2.60.1

Published CVSS scores

6.6GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59Improper Link Resolution Before File Access ('Link Following')
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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