CVE-2026-11569

MEDIUM 5.4

Quay: quay: stored xss via filedrop svg upload

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in Quay. The filedrop endpoint accepts any mime type without validation, allowing an authenticated user with repository write access to upload a malicious SVG file containing JavaScript. The file is stored and served inline through the CDN, enabling stored cross-site scripting when a victim visits the archive URL.

CWE	CWE-79
Vendor	red hat
Product	red hat quay 3
Published	Jun 8, 2026
Last Updated	Jun 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Red Hat / Red Hat Quay 3

All versions affected

Red Hat / Red Hat Quay 3

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-11569 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2486194

Credits

This issue was discovered by Toni Gornals (Red Hat Product Security).