EUVD-2026-20515
GHSA-mvqc-wfv6-7764
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Arbitrary code execution in Red Hat Quay via unsafe deserialization during resumable container image uploads affects multiple Quay 3.x deployments and Mirror Registry instances. An authenticated attacker with low privileges can tamper with intermediate upload data stored in the database to execute code on the Quay server, though exploitation requires high attack complexity and user interaction (CVSS 7.1). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires authenticated user account on Red Hat Quay with push permissions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is moderate despite the critical RCE impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated developer with container push permissions to a corporate Red Hat Quay registry initiates a resumable upload of a malicious container layer. During the chunked upload process, the attacker intercepts and modifies the intermediate upload state stored in Quay's database, injecting a serialized payload crafted to execute system commands when deserialized. … |
| Remediation | Organizations should immediately consult the Red Hat security advisory at https://access.redhat.com/security/cve/CVE-2026-32590 and the Bugzilla tracking issue at https://bugzilla.redhat.com/show_bug.cgi?id=2446964 for patch availability and specific fixed versions. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Red Hat Quay 3.x and Mirror Registry deployments; restrict upload permissions to highly trusted users only and enable detailed audit logging of upload activities. …
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External POC / Exploit Code
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