{"schemaVersion":3,"id":"CVE-2025-59425","aliases":["GHSA-wr9h-g72x-mwhm","PYSEC-2026-2026","CGA-4g9w-x437-9rpq","CGA-4m4m-3rjf-mqxv","CGA-f2qr-8xmq-5457","CGA-gj7j-wf46-pm3m","CGA-rq87-wpj8-gj6p"],"status":"published","duplicateOf":null,"title":null,"description":"vLLM is an inference and serving engine for large language models (LLMs). Before version 0.11.0rc2, the API key support in vLLM performs validation using a method that was vulnerable to a timing attack. API key validation uses a string comparison that takes longer the more characters the provided API key gets correct. Data analysis across many attempts could allow an attacker to determine when it finds the next correct character in the key sequence. Deployments relying on vLLM's built-in API key validation are vulnerable to authentication bypass using this technique. Version 0.11.0rc2 fixes the issue.","dates":{"published":"2025-10-07T14:06:49.042Z","modified":"2025-10-07T15:28:10.303Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00566,"percentile":0.45927,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00566},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00566,"percentile":0.45927}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00566,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00566,"percentile":0.45927}]},"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":"GITHUB_VLLM-PROJECT_VLLM","name":"Vllm","source":"github","url":"https://github.com/vllm-project/vllm/issues/57266","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-385","name":"Covert Timing Channel","description":"Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/385.html"}],"affected":[{"vendor":"chainguard","product":"py3-vllm-cuda-12.4","name":"py3-vllm-cuda-12.4","label":"py3-vllm-cuda-12.4","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/py3-vllm-cuda-12.4","purlType":"apk","versions":[{"text":"< 0.11.0-r2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0-r2","eol":null,"hubHref":null},{"vendor":"chainguard","product":"py3.10-vllm-cuda-12.4","name":"py3.10-vllm-cuda-12.4","label":"py3.10-vllm-cuda-12.4","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/py3.10-vllm-cuda-12.4","purlType":"apk","versions":[{"text":"< 0.11.0-r2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0-r2","eol":null,"hubHref":null},{"vendor":"chainguard","product":"py3.12-vllm-cuda-12.4","name":"py3.12-vllm-cuda-12.4","label":"py3.12-vllm-cuda-12.4","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/py3.12-vllm-cuda-12.4","purlType":"apk","versions":[{"text":"< 0.11.0-r2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0-r2","eol":null,"hubHref":null},{"vendor":"chainguard","product":"tritonserver-backend-vllm-cuda-12.9","name":"tritonserver-backend-vllm-cuda-12.9","label":"tritonserver-backend-vllm-cuda-12.9","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/tritonserver-backend-vllm-cuda-12.9","purlType":"apk","versions":[{"text":"< 25.9.0_git20251016-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 25.9.0_git20251016-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"tritonserver-backend-vllm-meta-cuda-12.9","name":"tritonserver-backend-vllm-meta-cuda-12.9","label":"tritonserver-backend-vllm-meta-cuda-12.9","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/tritonserver-backend-vllm-meta-cuda-12.9","purlType":"apk","versions":[{"text":"< 25.9.0_git20251016-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 25.9.0_git20251016-r0","eol":null,"hubHref":null},{"vendor":"PyPI","product":"vllm","name":"vllm","label":"vllm","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/vllm","purlType":"pypi","versions":[{"text":"< 0.11.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0","eol":null,"hubHref":null},{"vendor":"vllm-project","product":"vllm","name":"vllm","label":"vllm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.11.0rc2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0rc2","eol":null,"hubHref":"/vendor/vllm-project/vllm"},{"vendor":"vllm","product":"vllm","name":"vllm","label":"vllm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.11.0","noFixRecorded":false,"fixedIn":null},{"text":"0.11.0:rc1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0 | 0.11.0:rc1","eol":null,"hubHref":"/vendor/vllm/vllm"}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-wr9h-g72x-mwhm","label":"github.com/vllm-project/vllm/security/advisories/GHSA-wr9h-g72x-mwhm","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","Advisory","Exploit","Vendor Advisory"]},{"url":"https://github.com/vllm-project/vllm/commit/ee10d7e6ff5875386c7f136ce8b5f525c8fcef48","label":"github.com/vllm-project/vllm/commit/ee10d7e6ff5875386c7f136ce8b5f525c8fcef48","hostname":"github.com","tags":["X Refsource MISC","WEB","FIX","Patch"]},{"url":"https://github.com/vllm-project/vllm/blob/4b946d693e0af15740e9ca9c0e059d5f333b1083/vllm/entrypoints/openai/api_server.py#L1270-L1274","label":"github.com/vllm-project/…","hostname":"github.com","tags":["X Refsource MISC","WEB","Product"]},{"url":"https://github.com/vllm-project/vllm/releases/tag/v0.11.0","label":"github.com/vllm-project/vllm/releases/tag/v0.11.0","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59425","label":"nvd.nist.gov/vuln/detail/CVE-2025-59425","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/advisories/GHSA-wr9h-g72x-mwhm","label":"github.com/advisories/GHSA-wr9h-g72x-mwhm","hostname":"github.com","tags":["Advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-2026.yaml","label":"github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-2026.yaml","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/vllm-project/vllm","label":"github.com/vllm-project/vllm","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://pypi.org/project/vllm","label":"pypi.org/project/vllm","hostname":"pypi.org","tags":["WEB","PACKAGE"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59425.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59425.json","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-6GPP-G575-VCCM","CGA-G77P-WXX7-GQPC","CGA-J656-XH2X-CWMG"]},"timeline":[{"kind":"published","date":"2025-10-07T14:06:49.042Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-10-07T15:28:10.303Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":40,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T17:04:19.813Z","stale":false,"partial":false}}