{"cve":"CVE-2026-48545","nvd":{"published":"2026-05-27T15:16:31.020","modified":"2026-10-08T16:17:18.010","status":"Analyzed","description":"Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a shared module-level HTTP client used across all users in the reverse proxy endpoint. Attackers controlling any HF Space can return a parent-domain cookie that the shared client stores and automatically replays into all subsequent proxy requests to other legitimate Spaces, affecting all users of the same Gradio deployment.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":7.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","score":6.8},"cwes":["CWE-384"],"references":["https://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39","https://github.com/gradio-app/gradio/issues/13369","https://github.com/gradio-app/gradio/pull/13384","https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0","https://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro"],"products":["gradio_project:gradio"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-48545","score":0.0035,"percentile":0.28413,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7hp7-4p35-3cx2","url":"https://osv.dev/vulnerability/GHSA-7hp7-4p35-3cx2","summary":"Gradio contains a cookie injection vulnerability","modified":"2026-07-13T07:26:51.393435272Z","packages":[{"ecosystem":"PyPI","name":"gradio","purl":"pkg:pypi/gradio","ranges":["<6.15.0"],"fixed":["6.15.0"]}]},{"id":"PYSEC-2026-2178","url":"https://osv.dev/vulnerability/PYSEC-2026-2178","summary":"","modified":"2026-07-13T16:45:11.499302138Z","packages":[{"ecosystem":"PyPI","name":"gradio","purl":"pkg:pypi/gradio","ranges":["<6.15.0"],"fixed":["6.15.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}