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Description

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.

PUBLISHED Reserved 2026-06-08 | Published 2026-06-08 | Updated 2026-06-08 | Assigner redhat




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
affected

Default status
affected

Timeline

2026-06-08:Reported to Red Hat.
2026-06-08:Made public.

Credits

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

References

access.redhat.com/security/cve/CVE-2026-11569 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2486194 (RHBZ#2486194) issue-tracking

cve.org (CVE-2026-11569)

nvd.nist.gov (CVE-2026-11569)

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