PowerProtect Data Domain <8.9: Path Traversal via Improper Path Limit
CVE-2026-86383 Published on October 28, 2026
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.
Vulnerability Analysis
CVE-2026-86383 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-86383 has been classified to as a Directory traversal vulnerability or weakness.
Affected Versions
Dell PowerProtect Data Domain:- Before 8.9.0.0 or later is affected.
- Before 8.3.1.50 or later is affected.
- Before 8.6.1.30 or later is affected.