{"schemaVersion":3,"id":"CVE-2026-59820","aliases":["GHSA-5jmr-gcrj-2c9q","PYSEC-2026-3477"],"status":"published","duplicateOf":null,"title":null,"description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.7-stable, LiteLLM Skills archive extraction did not sufficiently validate file paths from uploaded skill ZIP archives, allowing an authenticated user with access to LiteLLM LLM API routes or a key whose allowed_routes includes /v1/skills, anthropic_routes, or llm_api_routes to upload a crafted skill archive containing path traversal entries that could be written outside the intended extraction or staging directory. This issue is fixed in version 1.83.7-stable.","dates":{"published":"2026-07-08T19:32:11.739Z","modified":"2026-07-09T14:37:09.457Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":6.1,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":6.1,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00587,"percentile":0.47068,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00587},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00465,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00587,"percentile":0.47068}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00587,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00587,"percentile":0.47068}]},"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":[],"exploitCount":0,"weaknesses":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","description":"The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/22.html"}],"affected":[{"vendor":"berriai","product":"litellm","name":"LiteLLM","label":"litellm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.83.7-stable","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.83.7-stable","eol":null,"hubHref":"/vendor/berriai/litellm"},{"vendor":"litellm","product":"litellm","name":"litellm","label":"litellm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.83.7","noFixRecorded":false,"fixedIn":null},{"text":"1.83.7:rc1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.83.7 | 1.83.7:rc1","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":"< 1.83.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.83.7","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-5jmr-gcrj-2c9q","label":"github.com/BerriAI/litellm/security/advisories/GHSA-5jmr-gcrj-2c9q","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","Mitigation","Patch","Vendor Advisory"]},{"url":"https://github.com/BerriAI/litellm/pull/25475","label":"github.com/BerriAI/litellm/pull/25475","hostname":"github.com","tags":["X Refsource MISC","WEB","Issue Tracking","Patch"]},{"url":"https://github.com/BerriAI/litellm/commit/6a15adcd64137d37f73dee76dfe7481f8c2d9196","label":"github.com/BerriAI/litellm/commit/6a15adcd64137d37f73dee76dfe7481f8c2d9196","hostname":"github.com","tags":["X Refsource MISC","WEB","Patch"]},{"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://nvd.nist.gov/vuln/detail/CVE-2026-59820","label":"nvd.nist.gov/vuln/detail/CVE-2026-59820","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-5jmr-gcrj-2c9q","label":"github.com/advisories/GHSA-5jmr-gcrj-2c9q","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-08T19:32:11.739Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-09T14:37:09.457Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T21:47:40.732Z","stale":false,"partial":false}}