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Medium 6.8Published May 27, 2026

CVE-2026-48545Gradio < 6.15.0 Cookie Injection via Shared Proxy Client

Updated under an hour ago ()

Does this affect you?

It affects gradio-app gradio and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-384
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Analyzed
Record last updated
Oct 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
gradio-app gradio
gradio_app:gradio (from the name)
before 6.15.0
CNA record
gradio_project gradio
gradio_project:gradio
before 6.15.0
NVD

References

  • release-notes
  • issue-tracking
  • issue-tracking
  • patch
  • third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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