mirror registry for Red Hat OpenShift 2.0: Deserialization of Untrusted Data
CVE-2026-32590 is a high-severity deserialization of untrusted data vulnerability in mirror registry for Red Hat OpenShift 2.0 from Red Hat, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.54% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of mirror registry for Red Hat OpenShift 2.0 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on access.redhat.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Red Hat | mirror registry for Red Hat OpenShift 2.0 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.10 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.12 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.14 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.15 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.16 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.17 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.18 | Not specified in the record | Not stated |
| Red Hat | Red Hat Quay 3.9 | Not specified in the record | Not stated |
| Red Hat | mirror registry for Red Hat OpenShift | Not specified in the record | Not stated |
| Red Hat | Quay | 3.0.0 | Not 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
- LowA basic user account is enough.
- 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:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.1 | High | CNA (redhat.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
A flaw was found in Red Hat Quay's handling of resumable container image layer uploads. The upload process stores intermediate data in the database using a format that, if tampered with, could allow an attacker to execute arbitrary code on the Quay server.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
How developers prevent this class of flaw
- If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
- When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
- Explicitly define a final object() to prevent deserialization.
More Deserialization of Untrusted Data vulnerabilities (CWE-502)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other references
- access.redhat.com/errata/RHSA-2026:19375
- access.redhat.com/errata/RHSA-2026:21017
- access.redhat.com/errata/RHSA-2026:22465
- access.redhat.com/errata/RHSA-2026:22629
- access.redhat.com/errata/RHSA-2026:22840
- access.redhat.com/errata/RHSA-2026:23361
- access.redhat.com/errata/RHSA-2026:24833
- access.redhat.com/errata/RHSA-2026:24853
- access.redhat.com/errata/RHSA-2026:28441
- access.redhat.com/errata/RHSA-2026:48085
Other vulnerabilities in mirror registry for Red Hat OpenShift 2.0
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
Recent Deserialization of Untrusted Data vulnerabilities
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 7.3 High severity
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