CVE-2026-123710Quay: red hat quay: unauthenticated registry signing-key takeover via service key rotation

Description

A flaw was found in Red Hat Quay. An unauthenticated client can obtain an anonymous registry token with an audience it controls, present that token to the service key rotation endpoint, and install its own approved signing key with no expiry. Registry tokens signed with that key are accepted for any repository, allowing read and write access to private images and replacement of repository tags.

Timeline

Scores

EPSS (exploitation in 30 days)

0.43% · top 63% of all CVEs (12 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Affected products

• Project Quay · quay

  • affected < 3.9.28
  • affected 3.10.0 – < 3.10.28
  • affected 3.12.0 – < 3.12.24
  • affected 3.14.0 – < 3.14.10
  • affected 3.15.0 – < 3.15.9
  • affected 3.16.0 – < 3.16.7
  • affected 3.17.0 – < 3.17.7
  • affected 3.18.0 – < 3.18.3

• Red Hat · Red Hat Quay 3.10

  • unaffected 1793993674 – < *

• Red Hat · Red Hat Quay 3.12

  • unaffected 1793993854 – < *

• Red Hat · Red Hat Quay 3.14

  • unaffected 1793993848 – < *

• Red Hat · Red Hat Quay 3.15

  • unaffected 1793993771 – < *

• Red Hat · Red Hat Quay 3.16

  • unaffected 1793993799 – < *

• Red Hat · Red Hat Quay 3.17

  • unaffected 1793993778 – < *

• Red Hat · Red Hat Quay 3.18

  • unaffected 1793993890 – < *

• Red Hat · Red Hat Quay 3.9

  • unaffected 1793993730 – < *

• Red Hat · Red Hat Quay 5

  All versions: affected

What to do

Workaround: Restrict access to the /keys endpoint at the proxy or load balancer so only trusted internal components can reach it. Review audit logs for service_key_rotate and service_key_delete events with a null expiration_date, and remove any unrecognised approved service keys. Deleting a rogue key is not durable until a fixed build is deployed, because the anonymous request can install a new key.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-123542 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-123710](https://cveledger.app/badge/CVE-2026-123710.svg)](https://cveledger.app/cve/CVE-2026-123710)

Record last updated 13 Nov 2026, 00:21 UTC.