{"schemaVersion":3,"id":"CVE-2026-42271","aliases":["GHSA-v4p8-mg3p-g94g","PYSEC-2026-2599","CGA-77vh-8x3h-jh3f","CGA-m33g-44hr-xw7g","CGA-5567-cjp8-f9j6","CGA-m6v2-r9jg-jw7j"],"status":"published","duplicateOf":null,"title":"BerriAI LiteLLM Command Injection Vulnerability","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.74.2 to before version 1.83.7, two endpoints used to preview an MCP server before saving it — POST /mcp-rest/test/connection and POST /mcp-rest/test/tools/list — accepted a full server configuration in the request body, including the command, args, and env fields used by the stdio transport. When called with a stdio configuration, the endpoints attempted to connect, which spawned the supplied command as a subprocess on the proxy host with the privileges of the proxy process. The endpoints were gated only by a valid proxy API key, with no role check. Any authenticated user — including holders of low-privilege internal-user keys — could therefore run arbitrary commands on the host. This issue has been patched in version 1.83.7.","dates":{"published":"2026-05-08T03:35:16.758Z","modified":"2026-07-15T00:57:49.325Z","reserved":null,"kevAdded":["2026-06-08T00:00:00.000Z"],"kevDue":["2026-06-22T00:00:00.000Z"]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Wolfi","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Chainguard","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/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":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.9257,"percentile":0.99828,"severity":"critical","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":8.975999999999996,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.83594},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.9257,"percentile":0.99828}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.83594,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.12754,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.9257,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.9257,"percentile":0.99828}]},"kev":{"state":"listed","entries":[{"source":"cisa","sourceLabel":"CISA","dateAdded":"2026-06-08T00:00:00.000Z","dueDate":"2026-06-22T00:00:00.000Z","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","name":"BerriAI LiteLLM Command Injection Vulnerability","description":"BerriAI LiteLLM contains a command injection vulnerability that could allow any authenticated user, including holders of low-privilege internal-user keys, to run arbitrary commands on the host.","notes":[{"type":"text","value":"This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://github.com/BerriAI/litellm/security/advisories/GHSA-v4p8-mg3p-g94g"},{"type":"url","href":"https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable","label":"github.com/BerriAI/litellm/releases/tag/v1.83.7-stable"},{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2026-42271","label":"nvd.nist.gov/vuln/detail/CVE-2026-42271"}],"vendor":"BerriAI","product":"LiteLLM","ransomware":false,"ransomwareUse":"Unknown","exploitationType":null}],"listedCount":1,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":true,"entry":{"source":"cisa","sourceLabel":"CISA","dateAdded":"2026-06-08T00:00:00.000Z","dueDate":"2026-06-22T00:00:00.000Z","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","name":"BerriAI LiteLLM Command Injection Vulnerability","description":"BerriAI LiteLLM contains a command injection vulnerability that could allow any authenticated user, including holders of low-privilege internal-user keys, to run arbitrary commands on the host.","notes":[{"type":"text","value":"This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://github.com/BerriAI/litellm/security/advisories/GHSA-v4p8-mg3p-g94g"},{"type":"url","href":"https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable","label":"github.com/BerriAI/litellm/releases/tag/v1.83.7-stable"},{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2026-42271","label":"nvd.nist.gov/vuln/detail/CVE-2026-42271"}],"vendor":"BerriAI","product":"LiteLLM","ransomware":false,"ransomwareUse":"Unknown","exploitationType":null}},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"MSF_EXPLOIT_MULTI_HTTP_LITELLM_MCP_TEST_CMD_INJECTION","name":"BerriAI LiteLLM Proxy MCP Test Endpoint Command Execution","source":"metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploit/multi/http/litellm_mcp_test_cmd_injection.rb","maturity":"weaponized","reliabilityScore":1,"verified":true,"type":"remote","platforms":[],"requiresAuth":false,"exploitdb":null,"metasploit":{"fullname":"exploit/multi/http/litellm_mcp_test_cmd_injection","rank":"600","rankName":"excellent","postAuth":false,"check":true,"stability":["crash-safe"],"sideEffects":["ioc-in-logs","artifacts-on-disk"],"reliability":["repeatable-session"]}}],"exploitCount":1,"weaknesses":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","description":"The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/77.html"},{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","description":"The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/78.html"}],"affected":[{"vendor":"chainguard","product":"airflow-3","name":"airflow-3","label":"airflow-3","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/airflow-3","purlType":"apk","versions":[{"text":"< 3.2.2-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.2-r7","eol":null,"hubHref":null},{"vendor":"chainguard","product":"litellm","name":"litellm","label":"litellm","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/litellm","purlType":"apk","versions":[{"text":"< 1.83.10.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.83.10.0-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"airflow-3","name":"airflow-3","label":"airflow-3","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/airflow-3","purlType":"apk","versions":[{"text":"< 3.2.2-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.2-r7","eol":null,"hubHref":null},{"vendor":"berriai","product":"litellm","name":"LiteLLM","label":"litellm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.74.2, < 1.83.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.74.2, < 1.83.7","eol":null,"hubHref":"/vendor/berriai/litellm"},{"vendor":"litellm","product":"litellm","name":"litellm","label":"litellm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.74.2, < 1.83.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.74.2, < 1.83.7","eol":null,"hubHref":"/vendor/litellm/litellm"},{"vendor":"PyPI","product":"litellm","name":"litellm","label":"litellm","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/litellm","purlType":"pypi","versions":[{"text":"≥ 1.74.2, < 1.83.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.74.2, < 1.83.7","eol":null,"hubHref":null},{"vendor":"redhat","product":"openshift_ai","name":"openshift ai","label":"openshift_ai","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.25, < 2.25.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.3, < 3.3.4","noFixRecorded":false,"fixedIn":null},{"text":"3.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.25, < 2.25.8 | ≥ 3.3, < 3.3.4 | 3.4","eol":null,"hubHref":"/vendor/redhat/openshift_ai"}],"affectedCount":7,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-v4p8-mg3p-g94g","label":"github.com/BerriAI/litellm/security/advisories/GHSA-v4p8-mg3p-g94g","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","Advisory","Mitigation","Patch","Vendor Advisory"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable","label":"github.com/BerriAI/litellm/releases/tag/v1.83.7-stable","hostname":"github.com","tags":["X Refsource MISC","WEB","Product","Release Notes"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42271","label":"www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42271","hostname":"www.cisa.gov","tags":["Government Resource","WEB","US Government Resource"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-42271","label":"access.redhat.com/security/cve/CVE-2026-42271","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","Advisory","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467924","label":"bugzilla.redhat.com/show_bug.cgi?id=2467924","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","REPORT","Third Party Advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42271.json","label":"security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42271.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex","WEB","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:28960","label":"access.redhat.com/errata/RHSA-2026:28960","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Advisory","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:30056","label":"access.redhat.com/errata/RHSA-2026:30056","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Advisory","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:27784","label":"access.redhat.com/errata/RHSA-2026:27784","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42271","label":"nvd.nist.gov/vuln/detail/CVE-2026-42271","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/BerriAI/litellm","label":"github.com/BerriAI/litellm","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://pypi.org/project/litellm","label":"pypi.org/project/litellm","hostname":"pypi.org","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-v4p8-mg3p-g94g","label":"github.com/advisories/GHSA-v4p8-mg3p-g94g","hostname":"github.com","tags":["Advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42271.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42271.json","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-7C8M-886M-WR9Q"]},"timeline":[{"kind":"published","date":"2026-05-08T03:35:16.758Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"kev-added","date":"2026-06-08T00:00:00.000Z","label":"Added to CISA KEV","detail":"BerriAI LiteLLM Command Injection Vulnerability","source":"cisa"},{"kind":"kev-due","date":"2026-06-22T00:00:00.000Z","label":"CISA remediation due","detail":"Apply mitigations per vendor instructions.","source":"cisa"},{"kind":"modified","date":"2026-07-15T00:57:49.325Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":85,"level":"critical","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T07:23:37.301Z","stale":false,"partial":false}}