SA-26-126 Medium

Gradio: Gradio contains a cookie injection vulnerability

Gradio

Severity
Medium, CVSS 6.8
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Record
CVE-2026-48545
Affects
Gradio
Known exploited
Not listed in the CISA Known Exploited Vulnerabilities catalog
Published
Record first published by the source
May 27, 2026
Source last modified
October 8, 2026

Description

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.

Description quoted from the NVD record.

Sources

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