CVE-2026-18228: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Commvault Commvault Cloud
Description
CVE-2026-18228 is a path traversal vulnerability in Commvault Cloud's HyperScale MediaAgents that could lead to information disclosure. The issue affects specific versions prior to maintenance releases that resolve the flaw. The vulnerability has a high severity score of 7.1 and requires updating to a fixed maintenance release to mitigate risk.
CVSS v4.0
Score 7.1high
Affected software
Commvault
Commvault Cloud
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), exists in Commvault Cloud's HyperScale MediaAgents. It allows an attacker with limited privileges to perform a path traversal attack, potentially disclosing sensitive information by accessing files outside the intended directory. The flaw affects multiple version ranges of the software prior to the fixed maintenance releases.
Potential Impact
An attacker with low privileges can exploit this vulnerability to disclose sensitive information by traversing directories beyond the intended scope. This could lead to unauthorized access to confidential data stored on the affected system. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Customers should upgrade their Commvault HyperScale MediaAgents to the resolved maintenance releases that fix this path traversal vulnerability. Since the product is not a cloud service, remediation requires manual update by the customer. Patch status is confirmed by vendor advisory indicating fixed maintenance releases exist.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Commvault
- Date Reserved
- 2026-07-29T11:49:22.558Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ace415b2cdf04f656747daa
Added to database: 10/13/2026, 14:34:03 UTC
Last enriched: 10/13/2026, 14:50:06 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 9
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