Gradio < 6.15.0 Cookie Injection via Shared Proxy Client
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.
CVE-2026-48545
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-48545
gradio
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/gradio-app/gradio",
"vendor": "gradio-app",
"product": "gradio",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "6.15.0",
"versionType": "semver"
}
],
"packageURL": "pkg:pypi/gradio",
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-48545
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12732 · Revision 1
- Added to Heist Feed
- Publisher date