Advisory details:
vulnrichment / CVE-2026-48545
| Advisory ID | vulnrichment/CVE-2026-48545 |
| Aliases | |
| 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| CWE-384 | Session Fixation |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.8 | |
| cvssv4 | 7.6 | |
| ssvc | Track* |
| Reference id | Reference type | URL |
|---|---|---|
| 13369 | Other | https://github.com/gradio-app/gradio/issues/13369 |
| 13384 | Bug | https://github.com/gradio-app/gradio/pull/13384 |
| feb7237d01f359d2ad4ee42d00344e61692b3b39 | Other | https://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39 |
| gradio%406.15.0 | Other | https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0 |
| gradio-cookie-injection-via-shared-pro | Advisory | https://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
There are no SSVC decisions available.