{"schemaVersion":3,"id":"CVE-2026-47833","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"setupBpmLogs follows symlink for bpm.log open and chown — container-to-host privilege escalation via /etc/shadow. A compromised process inside a bpm container can cause root to chown an arbitrary host file to vcap and append bpm JSON log lines to it. The chown alone lets the attacker take ownership of /etc/shadow and read every password hash on the host via the read-only /etc bind mount. This is a container-to-host confidentiality break affecting every bpm-managed job.\n\nAffected versions: bpm-release, all versions prior to v1.4.30.","dates":{"published":"2026-06-18T18:30:18.855Z","modified":"2026-06-18T19:08:11.771Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.9,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"NVD","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":6.8,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":6.9,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00167,"percentile":0.05548,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00167},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00167,"percentile":0.05548}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00167,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00167,"percentile":nul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Link Resolution Before File Access ('Link Following')","description":"The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/59.html"}],"affected":[{"vendor":"cloud foundry foundation","product":"bpm-release","name":"bpm-release","label":"bpm-release","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.4.30","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 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