CVE-2026-16910
CVE-2026-16910: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-16910] SSRF in Red Hat Quay notification webhooks (Slack/generic)
CVE-2026-16910Source published Source updated
A flaw was found in Red Hat Quay's notification webhook feature. The Slack and generic webhook notification handlers accept user-supplied URLs without SSRF validation, allowing a repository administrator to make the Quay worker issue POST requests to internal network addresses or cloud infrastructure endpoints that should not be reachable from the application. The Quay worker issues requests to attacker-specified URLs when notifications fire, but response data is not returned to the attacker, limiting exploitable impact to network probing and unauthenticated side-effects on internal services. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N). Weakness: CWE-918. Affected Red Hat products: Red Hat OpenShift Update Service; Red Hat Quay 3. Red Hat does not…
- Affected products in this advisory
- Red Hat OpenShift Update Service
- Red Hat Quay 3
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Restrict network egress from Quay worker pods/containers using network policies or firewall rules to block outbound connections to internal network ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) and cloud metadata endpoints (169.254.169.254). Limit repository creation and admin privileges to trusted users. Configure WEBHOOK_HOSTNAME_BLACKLIST in Quay config to include known internal hostnames and IP ranges.
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