# CVE-2026-6892: Path traversal in Canon PIXUS iX6800 Series CUPS Printer Driver for macOS

> A local attacker can exploit symbolic links during installation to modify directory permissions, leading to privilege escalation.

- **Severity:** Medium 5.1 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 May 2026
- **Updated:** 29 May 2026
- **Also known as:** GHSA-xjvf-w7h7-789h

## What is CVE-2026-6892?

CVE-2026-6892 is a medium-severity path traversal vulnerability in Canon PIXUS iX6800 Series CUPS Printer Driver for macOS, published on 29 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Improper handling of symbolic links in the installer of CUPS Printer Driver for macOS(*) may allow a local attacker with login privileges to exploit a specially crafted symbolic link during installation to modify permissions of directories for which they would not normally have authorization. 

*:Canon PIXUS iX6800 Series CUPS Printer Driver for macOS Version 16.91.0.0 or earlier (Japan)

Canon PIXMA MG2500 Series and iX6800 Series CUPS Printer Driver for macOS Version 16.91.0.0 or earlier (US and Europe)

Weakness: CWE-59 (Improper Link Resolution Before File Access)

## Which versions are affected by CVE-2026-6892?


## How do I fix CVE-2026-6892?

No fix has been published for CVE-2026-6892 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6892 being exploited?

There is no known exploitation of CVE-2026-6892 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6892 and fix it if it is affected.

What it is: CVE-2026-6892 is a medium-severity path traversal vulnerability in Canon PIXUS iX6800 Series CUPS Printer Driver for macOS, published on 29 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-6892 in the wild and no public exploit code.

Affected product: Canon PIXUS iX6800 Series CUPS Printer Driver for macOS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-6892/ (Markdown: https://insights.sbomify.com/CVE-2026-6892/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6892
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6892
- OSV: https://osv.dev/vulnerability/CVE-2026-6892

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-6892/
Summaries are generated and may contain mistakes; the official description above is the record.