{"id":"CVE-2026-13738","aliases":["EUVD-2026-56002","GHSA-98g5-m37p-p3v2"],"status":"published","title":"Improper Authorization Validation","description":"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":{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00671,"percentile":0.52472,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-08-11T11:01:39Z","modified":"2026-10-23T19:10:00Z","products":[{"vendor":"commvault","product":"commvault"},{"vendor":"commvault","product":"commvault cloud"}],"references":[{"url":"https://documentation.commvault.com/securityadvisories/CV_2026_07_9.html","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13738"},{"url":"https://github.com/advisories/GHSA-98g5-m37p-p3v2"}],"sources":{"cve":[{"id":"CVE-2026-13738","title":"Improper Authorization Validation","description":"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.","status":"published","published":"2026-08-11T11:01:39.248Z","modified":"2026-08-11T16:48:34.748Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:19:49.885652Z"}],"euvd":[{"id":"EUVD-2026-56002","description":"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.","status":"published","published":"2026-08-11T11:01:39Z","modified":"2026-08-11T16:48:34Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T18:01:59.926728Z"}],"ghsa":[{"id":"GHSA-98g5-m37p-p3v2","title":"CommServe contained an authorization bypass vulnerability affecting a limited set of command...","description":"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.","status":"published","published":"2026-08-11T12:30:22Z","modified":"2026-09-11T15:33:29Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:11:45.091927Z"}],"nvd":[{"id":"CVE-2026-13738","description":"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.","status":"published","published":"2026-08-11T12:17:37.923Z","modified":"2026-10-23T19:10:00.167Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}