{"id":"CVE-2026-105331","aliases":["EUVD-2026-95028","GHSA-hmv5-8m9q-xc8h"],"status":"published","title":"mk-oracle: Local privilege escalation via malicious Oracle Instant Client","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","severity":{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00084,"percentile":0.00257,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-426","CWE-829"],"published":"2026-10-08T14:19:41Z","modified":"2026-10-09T04:18:04Z","products":[{"vendor":"checkmk gmbh","product":"checkmk"}],"references":[{"url":"https://checkmk.com/werk/22619","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105331"},{"url":"https://github.com/advisories/GHSA-hmv5-8m9q-xc8h"}],"sources":{"cve":[{"id":"CVE-2026-105331","title":"mk-oracle: Local privilege escalation via malicious Oracle Instant Client","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","status":"published","published":"2026-10-08T14:19:41.627Z","modified":"2026-10-09T03:55:47.53Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna"}],"cwes":["CWE-426","CWE-829"],"updated_at":"2026-11-02T14:19:56.755658Z"}],"euvd":[{"id":"EUVD-2026-95028","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","status":"published","published":"2026-10-08T14:19:41Z","modified":"2026-10-09T03:55:47Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"updated_at":"2026-11-02T17:27:25.459601Z"}],"ghsa":[{"id":"GHSA-hmv5-8m9q-xc8h","title":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the...","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","status":"published","published":"2026-10-08T15:33:00Z","modified":"2026-10-08T15:33:01Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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":"medium"}],"cwes":["CWE-426"],"updated_at":"2026-11-02T15:12:56.476072Z"}],"nvd":[{"id":"CVE-2026-105331","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","status":"published","published":"2026-10-08T15:17:32.53Z","modified":"2026-10-09T04:18:04.407Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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":"medium","assessor":"secondary"}],"cwes":["CWE-426","CWE-829"],"updated_at":"2026-11-02T14:12:55.142936Z"}]}}