CVE-2026-63328

Arbitrary file write via manifest name traversal

Published Aug 18, 2026 · Updated Aug 18, 2026

Path traversal in Trivy before 0.72.0 allows attackers to write files to arbitrary user-writable paths via a crafted plugin manifest. In pkg/plugin/manager.go, the installer decodes plugin.yaml and uses its name field to derive the plugin directory and copied manifest path under ~/.trivy/plugins, but the pre-fix code joined that untrusted value directly and let ../ or absolute names escape the root. Exploitation requires a user to install or run an attacker-controlled third-party plugin, such as through trivy plugin install or trivy plugin run; plugins from the official Trivy plugin index are not affected.

CVSS severity6.8
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Trivy before 0.72.0 allows attackers to write files to arbitrary user-writable paths via a crafted plugin manifest. In pkg/plugin/manager.go, the installer decodes plugin.yaml and uses its name field to derive the plugin directory and copied manifest path under ~/.trivy/plugins, but the pre-fix code joined that untrusted value directly and let ../ or absolute names escape the root. Exploitation requires a user to install or run an attacker-controlled third-party plugin, such as through trivy plugin install or trivy plugin run; plugins from the official Trivy plugin index are not affected.

The record

CVE
CVE-2026-63328
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Aqua Security
Product
Trivy
Classifications
CWE-22
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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=< 0.72.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Aqua Security · Trivyversion=< 0.72.0

Published CVSS scores

6.8GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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