GradioGHSA-7hp7-4p35-3cx2
Gradio contains a cookie injection vulnerability
High6.8CVE-2026-48545 · Published May 27, 2026 · updated Jul 13, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| gradio PyPI | < 6.15.0 | 6.15.0 |
Details and references
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 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-384
- Also known as
- CVE-2026-48545, PYSEC-2026-2178
- nvd.nist.gov/vuln/detail/CVE-2026-48545
- github.com/gradio-app/gradio/issues/13369
- github.com/gradio-app/gradio/pull/13384
- github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39
- github.com/gradio-app/gradio
- github.com/gradio-app/gradio/releases/tag/gradio@6.15.0
- www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro