CVE-2026-74244

Quay: stripe webhook accepts forged events without signature verification in quay

Published Aug 14, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in Red Hat Quay's Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the `/webhooks/stripe` endpoint without validating the Stripe-Signature header. Successful exploitation can lead to the unauthorized resetting of a namespace's build quota to its maximum and trigger unsolicited billing emails to namespace administrators.

Remediation

Vendor Workaround

To mitigate this vulnerability, restrict network access to the `/webhooks/stripe` endpoint in Red Hat Quay. Configure network firewalls to allow connections to this endpoint only from trusted Stripe IP addresses or block access if Stripe billing integration is not utilized. This prevents unauthenticated attackers from forging billing events. Ensure any network changes are applied and services are reloaded or restarted as necessary for the changes to take effect, which may temporarily impact Quay service availability.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:redhat:openshift_update_service:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Redhat quay 3
Vendors & Products Redhat quay 3
Type Values Removed Values Added
Description A flaw was found in Red Hat Quay's Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the `/webhooks/stripe` endpoint without validating the Stripe-Signature header. Successful exploitation can lead to the unauthorized resetting of a namespace's build quota to its maximum and trigger unsolicited billing emails to namespace administrators.
Title Quay: stripe webhook accepts forged events without signature verification in quay
First Time appeared Redhat
Redhat openshift Update Service
Redhat quay
Weaknesses CWE-347
CPEs cpe:/a:redhat:openshift_update_service:5
cpe:/a:redhat:quay:3
Vendors & Products Redhat
Redhat openshift Update Service
Redhat quay
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 17, 2026, 6:02 PM
Reserved
Aug 14, 2026, 7:46 PM
Status
Analyzed
Published
Aug 14, 2026, 11:16 PM
Modified
Aug 20, 2026, 8:01 PM
Severity
Moderate
Public date
Aug 14, 2026, 12:00 AM