CyberSecBulletin
CVE-2026-123710NVD status: Analyzed

quay: Improper Validation of Specified Type of Input

Published Updated By the CyberSecBulletin desk

CVE-2026-123710 is a critical-severity improper validation of specified type of input vulnerability in quay from Project Quay, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 3.9.28, 3.10.28, 3.12.24 as the first without the flaw, so updating quay to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.66% chance of exploitation within 30 days, higher than 52% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update quay to 3.9.28 or 3.10.28 or 3.12.24 or 3.14.10, whichever matches your release line, or a later version.
  2. Read the advisory on access.redhat.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Project Quayquaybefore 3.9.28; 3.10.0 up to, but not including, 3.10.28; 3.12.0 up to, but not including, 3.12.24; 3.14.0 up to, but not including, 3.14.10; 3.15.0 up to, but not including, 3.15.9; 3.16.0 up to, but not including, 3.16.7; 3.17.0 up to, but not including, 3.17.7; 3.18.0 up to, but not including, 3.18.33.9.28, 3.10.28, 3.12.24, 3.14.10, 3.15.9, 3.16.7
Red HatRed Hat Quay 3.10Not specified in the recordNot stated
Red HatRed Hat Quay 3.12Not specified in the recordNot stated
Red HatRed Hat Quay 3.14Not specified in the recordNot stated
Red HatRed Hat Quay 3.15Not specified in the recordNot stated
Red HatRed Hat Quay 3.16Not specified in the recordNot stated
Red HatRed Hat Quay 3.17Not specified in the recordNot stated
Red HatRed Hat Quay 3.18Not specified in the recordNot stated
Red HatRed Hat Quay 3.9Not specified in the recordNot stated
Red Hatmirror registry for Red Hat OpenShift 2Not specified in the recordNot stated
Red HatRed Hat Quay 5Not specified in the recordNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (redhat.com).

Official 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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Validation of Specified Type of Input

The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.

More Improper Validation of Specified Type of Input vulnerabilities (CWE-1287)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in quay

All quay vulnerabilities

Recent Improper Validation of Specified Type of Input vulnerabilities

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