CVE-2026-6891

Unauthorized permission changes via crafted symbolic links

Published May 28, 2026 · Updated May 29, 2026

Link following in Canon Image Garden for macOS 3.6.8 and earlier allows local users to modify protected permissions during installation. The installer follows a crafted symbolic link without validating its target before applying permission changes to the referenced file or directory. Exploitation requires local login privileges and execution of the installer; the disclosed consequence is limited to unauthorized file or directory permission changes.

CVSS severity5.1
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Link following in Canon Image Garden for macOS 3.6.8 and earlier allows local users to modify protected permissions during installation. The installer follows a crafted symbolic link without validating its target before applying permission changes to the referenced file or directory. Exploitation requires local login privileges and execution of the installer; the disclosed consequence is limited to unauthorized file or directory permission changes.

The record

CVE
CVE-2026-6891
Published
May 28, 2026
Updated
May 29, 2026
Vendor
Canon Inc.
Product
My Image Garden for macOS
Classifications
CWE-59, T1222.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 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=3.6.8 or earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Canon Inc. · My Image Garden for macOSversion=3.6.8 or earlier

Published CVSS scores

5.0Canon Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
5.1Canon Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1222.002File and Directory Permissions Modification: Linux and Mac File and Directory Permissions Modification

Public exploit references

No public exploit references are available in this record.

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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