{"id":"CVE-2026-48545","title":"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 endpoi…","summary":"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 endpoi…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-384"],"vendor":"gradio_project","product":"gradio","affected":["gradio < 6.15.0"],"patched":["gradio 6.15.0"],"published":"2026-05-27","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:18.010","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-48545","references":[{"url":"https://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39","label":"disclosure@vulncheck.com"},{"url":"https://github.com/gradio-app/gradio/issues/13369","label":"disclosure@vulncheck.com"},{"url":"https://github.com/gradio-app/gradio/pull/13384","label":"disclosure@vulncheck.com"},{"url":"https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro","label":"disclosure@vulncheck.com"},{"url":"https://github.com/gradio-app/gradio/issues/13369","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48545"},{"url":"https://github.com/gradio-app/gradio"},{"url":"https://github.com/gradio-app/gradio/releases/tag/gradio@6.15.0"}],"tags":["nvd","cve.org","exploit-available","osv","pip"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-05-27T15:35:33.238298Z"},"epss":0.0035,"epssPercentile":0.28509,"aliases":["GHSA-7hp7-4p35-3cx2"],"ecosystem":"pip","ingestedAt":"2026-07-08T18:25:47.019Z","slug":"CVE-2026-48545","body":"## Overview\n\nGradio 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.\n\n## Affected\n\n- `gradio < 6.15.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `gradio 6.15.0`\n\n## Package advisory (CVE-2026-48545)\n\nAffected packages:\n\n- `gradio < 6.15.0`\n\nPatched in:\n\n- `gradio 6.15.0`\n\nSource: https://osv.dev/vulnerability/GHSA-7hp7-4p35-3cx2","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":218112,"id":"CVE-2026-48545","ts":1791478396950,"field":"exploit_available","old":"false","new":"true"}]}