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TI-2020-16902 Aliases CVE-2020-27831GHSA-3mxm-3qx9-6gq2

Improper access control in quay

Priority LOW 21CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Information disclosure
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-284 and CWE-522.

Summary

A flaw was found in Red Hat Quay, where it does not properly protect the authorization token when authorizing email addresses for repository email notifications. This flaw allows an attacker to add email addresses they do not own to repository notifications.

Why it matters now

EPSS 0.00546 46th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—quayQuay 3.3.3—No fix listedCNA
  • quay Vendor— Affected Quay 3.3.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:quay:*:*:*:*:*:*:*:*3.0.0 to before 3.3.3VulnerableRed Hat
  • cpe:2.3:a:redhat:quay:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.3.3 Vulnerable ·Red Hat

Remediation

Red Hat 1 advisory

  • RHSA-2021:0050 Released 2021-01-11 · Red Hat rating Moderate
    Red Hat Quay v3.3.3 bug fix and security update
    • Quay v3 quay/quay-container-security-rhel8-operator, quay/quay-container-security-rhel8-operator-metadata, quay/quay-openshift-bridge-rhel8-operator +3

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Quay v3Fixed RHSA-2021:0050

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27831
  2. 2026-10-03 Alias added: GHSA-3mxm-3qx9-6gq2

References

Advisory 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2019-06950 Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a… CVSS 3.1HIGH 7.5
  • TI-2019-06949 Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a… CVSS 3.1HIGH 7.5
  • TI-2019-06948 Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a… CVSS 3.1HIGH 7.5
  • TI-2026-32429 Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge CVSS 3.1HIGH 7.7
  • TI-2019-06946 Some HTTP/2 implementations are vulnerable to window size manipulation and stream… CVSS 3.1HIGH 7.5
See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences