high6.8
CVE-2026-48545
Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a sha…
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | gradio | < 6.15.0 | 6.15.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gradio Project | Gradio | before 6.15.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-7hp7-4p35-3cx2
- https://nvd.nist.gov/vuln/detail/CVE-2026-48545
- https://github.com/gradio-app/gradio/issues/13369
- https://github.com/gradio-app/gradio/pull/13384
- https://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39
- https://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro
- https://github.com/gradio-app/gradio/releases/tag/gradio@6.15.0
- https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0