CVE-2026-48545: Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform

Routine

MEDIUM 6.8UPGRADE

CVE-2026-48545 is a medium-severity flaw (CVSS 6.8) affecting gradio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 o

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-384
Published	2026-05-27
Last modified	2026-10-08

Publisher (CNA): VulnCheck · Vendor: gradio project

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 15:16 UTCPublished CVE record published
2026-10-08 16:17 UTCUpdated Record last modified

gradio project gradio UPGRADE

Affected: < 6.15.0

Fixed in: 6.15.0

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show gradio

2. UPGRADE to 6.15.0

pip install --upgrade "gradio>=6.15.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-48545?

gradio: upgrade to 6.15.0. Exact commands for each OS are on this page.

Is CVE-2026-48545 being exploited?

CVE-2026-48545 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-48545 affect?

CVE-2026-48545 affects gradio. Severity is medium (CVSS 6.8). 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.

How urgent is CVE-2026-48545?

Priority 31/100. No elevated risk signals yet.

Related CVEs

CVE-2026-49119 HIGH 7.5 UPGRADE Gradio before 6.16.0 contain a path traversal vulnerability in the FileExplorer component's preprocess() metho
CVE-2026-10783 LOW 2.5 DOWNGRADE A security flaw has been discovered in gradio-app gradio 6.14.0

References

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