# CVE-2026-6891: Canon My Image Garden for macOS symbolic link vulnerability in installer

Source: https://junglewise.ai/threats/cve-2026-6891-canon-my-image-garden-for-macos-symbolic-link-vulnerability-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-29. Updated: 2026-05-29  
License: CC BY 4.0 with a link back

CVE-2026-6891 · Severity: medium · CVSS 5 · Published 2026-05-29

Canon My Image Garden is a photo management and printing application for macOS. A vulnerability in its installer allows a local user to manipulate file permissions on the system by using specially crafted symbolic links during the installation process. This could allow an unauthorized person to gain control over files they should not be able to access, potentially compromising the integrity of the system.

Vendors: [Canon](https://junglewise.ai/threats/vendors/canon).

## Quick answers

**Is CVE-2026-6891 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-6891 being exploited in the wild.

**How severe is CVE-2026-6891?** Medium severity, with a CVSS score of 5, published 29 May 2026.

**Which products and versions are affected?** Canon My Image Garden 3.6.8 and earlier.

**Is there a fix for CVE-2026-6891?** A patch was published on 2026-05-28: Version 3.6.8a released to address the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-6891 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-6891?** Check whether you run Canon My Image Garden at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A 'Link Following' vulnerability (CWE-59) exists in the installer for Canon My Image Garden for macOS version 3.6.8 and earlier. The installer fails to properly validate symbolic links during the installation process. A local attacker with login privileges can create a specially crafted symbolic link that the installer follows, leading to the modification of permissions for arbitrary files or directories. This exploit requires user interaction (running the installer) and allows the attacker to gain unauthorized write access or control over sensitive system files. Canon has released version 3.6.8a to address this issue.

## Affected products

- Canon My Image Garden 3.6.8 and earlier

## Timeline

- 2026-05-28: advisory: Canon PSIRT published advisory CP2026-004
- 2026-05-28: patched: Version 3.6.8a released to address the vulnerability
- 2026-05-29: disclosed: CVE-2026-6891 published to NVD

## References

- [https://canon.jp/support/support-info/260528-2vulnerability-response](https://canon.jp/support/support-info/260528-2vulnerability-response)
- [https://psirt.canon/advisory-information/cp2026-004/](https://psirt.canon/advisory-information/cp2026-004/)
- [https://www.canon-europe.com/support/product-security/](https://www.canon-europe.com/support/product-security/)
- [https://www.usa.canon.com/support/canon-product-advisories/CPA2026-004-Vulnerability-Remediation-for-My-Image-Garden-for-macOS-and-CUPS-Printer-Driver-for-macOS](https://www.usa.canon.com/support/canon-product-advisories/CPA2026-004-Vulnerability-Remediation-for-My-Image-Garden-for-macOS-and-CUPS-Printer-Driver-for-macOS)