# CVE-2026-65951: Lenovo XClarity Essentials OneCLI path traversal in TAR.GZ extraction

Source: https://junglewise.ai/threats/cve-2026-65951-a-path-traversal-vulnerability-in-the-tar-gz-extraction-logic-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-65951 · Severity: medium · CVSS 5.8 · Published 2026-11-11

Lenovo XClarity Essentials OneCLI is a systems management tool for Linux servers. A path traversal flaw in its TAR.GZ extraction logic allows attackers to write arbitrary files with OneCLI's privileges if a user processes a malicious update package, potentially leading to unauthorized file modification or system compromise.

Technologies: [Lenovo XClarity Essentials OneCLI](https://junglewise.ai/threats/technologies/xclarity-essentials-onecli). Vendors: [Lenovo](https://junglewise.ai/threats/vendors/lenovo).

## Quick answers

**Is CVE-2026-65951 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-65951 being exploited in the wild.

**How severe is CVE-2026-65951?** Medium severity, with a CVSS score of 5.8, published 11 November 2026.

**Which products and versions are affected?** Lenovo XClarity Essentials OneCLI 5.5.0.

**Is there a fix for CVE-2026-65951?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-65951 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-65951?** Check whether you run Lenovo XClarity Essentials OneCLI 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 path traversal vulnerability exists in the TAR.GZ extraction logic of XClarity Essentials OneCLI 5.5.0 that fails to properly validate file paths during archive extraction. An attacker can craft a malicious TAR.GZ update package with path traversal sequences (e.g., ../../../) to write arbitrary files with the process privileges when a user processes the package. This requires user interaction to open a specially crafted update package.

## Affected products

- Lenovo XClarity Essentials OneCLI 5.5.0

## References

- [https://support.lenovo.com/us/en/solutions/ht116433](https://support.lenovo.com/us/en/solutions/ht116433)

## Related threats

- [Lenovo XClarity Essentials OneCLI command injection in SSH operation](https://junglewise.ai/threats/cve-2026-65952-improper-neutralization-of-special-elements-used-in-an-os-command)
- [Lenovo XClarity Essentials OneCLI path traversal in ZIP extraction](https://junglewise.ai/threats/cve-2026-65950-a-path-traversal-vulnerability-in-the-zip-extraction-logic-of)
- [Lenovo XClarity Essentials OneCLI temporary file overwrite](https://junglewise.ai/threats/cve-2026-16791-lenovo-xclarity-essentials-onecli-temporary-file-overwrite)