CVE-2026-32591

Low

No strong exploitation signal.

CVSS base

5.2 MEDIUM

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

EPSS — probability of exploitation (30 days)

0.3%

25.8th percentile

CISA KEV

Not listed

Weakness / dates

CWE-918

Published 2026-04-08 · modified 2026-09-10

CVSS breakdown

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

Attack Vector	N	Network
Attack Complexity	L	Low
Privileges Required	H	High
User Interaction	R	Required
Scope	U	Unchanged
Confidentiality	H	High
Integrity	L	Low
Availability	N	None

Timeline

2026-04-08 — Published (NVD)
2026-09-10 — Last modified (NVD)

Description

A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An attacker with organization administrator privileges could supply a crafted hostname to force the Quay server to make requests to internal network services, cloud infrastructure endpoints, or other resources that should not be accessible from the Quay application.

Affected

redhat

References

Official: NVD · CVE.org