Disclosure 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 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.
Source-reported weakness categories
CWE-384
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-48545
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| gradio_project | gradio | * {"versionEndExcluding":"6.15.0"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Patch
- github.com — Issue Tracking
- github.com — Issue Tracking, Patch
- github.com — Product, Release Notes
- www.vulncheck.com — Broken Link
- github.com — Issue Tracking
PUBLISHED 2026-05-27T11:16:31-04:00
MODIFIED 2026-10-08T12:17:18-04:00
INGESTED 2026-10-10T20:50:35-04:00