Vulnerability-Lookup

CVE-2026-13738 (GCVE-0-2026-13738)

Vulnerability from cvelistv5 – Published: 2026-08-11 11:01 – Updated: 2026-08-11 16:48

Title

Improper Authorization Validation

Summary

CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

Severity

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-11 16:48 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

Commvault

References

1 reference

URL	Tags
https://documentation.commvault.com/securityadvis…

Impacted products

1 product

Vendor	Product	Version
Commvault	Commvault Cloud	Affected: 11.46.0 , ≤ 11.46.9 (custom) Affected: 11.44.0 , ≤ 11.44.10 (custom) Affected: 11.40.0 , ≤ 11.40.62 (custom) Affected: 11.36.0 , ≤ 11.36.113 (custom)

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GHSA-98G5-M37P-P3V2

Vulnerability from github – Published: 2026-08-11 12:30 – Updated: 2026-08-11 12:30

Details

Severity

9.2 (Critical)


                  
                    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-13738"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T12:17:37Z",
    "severity": "CRITICAL"
  },
  "details": "CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations.  Software customers upgrade to resolved maintenance release.  Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.",
  "id": "GHSA-98g5-m37p-p3v2",
  "modified": "2026-08-11T12:30:22Z",
  "published": "2026-08-11T12:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13738"
    },
    {
      "type": "WEB",
      "url": "https://documentation.commvault.com/securityadvisories/CV_2026_07_9.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-13738 (GCVE-0-2026-13738)

GHSA-98G5-M37P-P3V2

Tags

Sightings

Nomenclature