VulnerabilityAwaiting Analysis

CVE-2026-11569

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.

MEDIUM 5.4EPSS 0.14%

Does this matter?

Lower severity and a low EPSS score (0.14%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.14% probability · 4th percentile
CISA KEV: Not listed
Weakness: CWE-79
Source: secalert@redhat.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.