{"schemaVersion":3,"id":"CVE-2026-0545","aliases":["GHSA-7qhf-v65m-g5f3","PYSEC-2026-419","CGA-4995-xhf9-8vhc","CGA-574c-9g4w-6g8g","CGA-6f36-8cj9-mcpx","CGA-jwj2-fxv8-2vx7","CGA-r6q3-5589-9w3r","CGA-rq62-c6g5-2mqq","CGA-vvcp-hv24-rh7p","CGA-8rq3-46r7-ph95","CGA-r8wv-83w4-m5q9"],"status":"published","duplicateOf":null,"title":null,"description":"In mlflow/mlflow, the FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization when the `basic-auth` app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled (`MLFLOW_SERVER_ENABLE_JOB_EXECUTION=true`) and any job function is allowlisted, any network client can submit, read, search, and cancel jobs without credentials, bypassing basic-auth entirely. This can lead to unauthenticated remote code execution if allowed jobs perform privileged actions such as shell execution or filesystem changes. Even if jobs are deemed safe, this still constitutes an authentication bypass, potentially resulting in job spam, denial of service (DoS), or data exposure in job results.","dates":{"published":"2026-04-03T17:03:12.833Z","modified":"2026-08-28T12:04:27.665Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Pypi","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":10,"impact":8.7,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Wolfi","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":10,"impact":8.7,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Chainguard","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":10,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.04392,"percentile":0.91257,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.04392},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.04392,"percentile":0.91257}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.04392,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.04392,"percentile":0.91257}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_902A088DFBA1B1B5","name":"Exploit Reference (huntr.com)","source":"reference","url":"https://huntr.com/bounties/b2e5b028-9541-4d29-8703-a76f1a3734d8","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-306","name":"Missing Authentication for Critical Function","description":"The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/306.html"}],"affected":[{"vendor":"chainguard","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/mlflow","purlType":"apk","versions":[{"text":"< 3.10.1-r3","noFixRecorded":false,"fixedIn":null},{"text":"< 3.16.0-r0","noFixRecorded":false,"fixedIn":null},{"text":"< 3.12.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.10.1-r3 | < 3.16.0-r0 | < 3.12.0-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"mlflow-fips","name":"mlflow-fips","label":"mlflow-fips","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/mlflow-fips","purlType":"apk","versions":[{"text":"< 3.11.1-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.11.1-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"mlflow-iamguarded-compat","name":"mlflow-iamguarded-compat","label":"mlflow-iamguarded-compat","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/mlflow-iamguarded-compat","purlType":"apk","versions":[{"text":"< 3.10.1-r3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.10.1-r3","eol":null,"hubHref":null},{"vendor":"wolfi","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/mlflow","purlType":"apk","versions":[{"text":"< 3.10.1-r3","noFixRecorded":false,"fixedIn":null},{"text":"< 3.16.0-r0","noFixRecorded":false,"fixedIn":null},{"text":"< 3.12.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.10.1-r3 | < 3.16.0-r0 | < 3.12.0-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"mlflow-iamguarded-compat","name":"mlflow-iamguarded-compat","label":"mlflow-iamguarded-compat","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/mlflow-iamguarded-compat","purlType":"apk","versions":[{"text":"< 3.10.1-r3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.10.1-r3","eol":null,"hubHref":null},{"vendor":"lfprojects","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/lfprojects/mlflow"},{"vendor":"mlflow","product":"mlflow/mlflow","name":"mlflow/mlflow","label":"mlflow/mlflow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, ≤ latest","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, ≤ latest","eol":null,"hubHref":"/vendor/mlflow/mlflowmlflow"},{"vendor":"PyPI","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/mlflow","purlType":"pypi","versions":[{"text":"≤ 3.10.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 3.10.1","eol":null,"hubHref":null}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://huntr.com/bounties/b2e5b028-9541-4d29-8703-a76f1a3734d8","label":"huntr.com/bounties/b2e5b028-9541-4d29-8703-a76f1a3734d8","hostname":"huntr.com","tags":["WEB","Exploit","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-0545","label":"access.redhat.com/security/cve/CVE-2026-0545","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2454889","label":"bugzilla.redhat.com/show_bug.cgi?id=2454889","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0545.json","label":"security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0545.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:60520","label":"access.redhat.com/errata/RHSA-2026:60520","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0545","label":"nvd.nist.gov/vuln/detail/CVE-2026-0545","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/mlflow/mlflow","label":"github.com/mlflow/mlflow","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://pypi.org/project/mlflow","label":"pypi.org/project/mlflow","hostname":"pypi.org","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-7qhf-v65m-g5f3","label":"github.com/advisories/GHSA-7qhf-v65m-g5f3","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-8PP2-PQPH-8RG4"]},"timeline":[{"kind":"published","date":"2026-04-03T17:03:12.833Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-28T12:04:27.665Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T04:11:28.025Z","stale":false,"partial":false}}