CVE-2026-16254

A flaw was found in claircore's apk package scanner. Malformed package-database data in a container layer can cause an out-of-bounds access that panics the scanner. If that panic is not recovered, the Clair indexer process can crash, leading to a denial of service.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-16254
https://bugzilla.redhat.com/show_bug.cgi?id=2502701

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-20 12:17

Updated : 2026-07-21 18:31

NVD link : CVE-2026-16254

Mitre link : CVE-2026-16254

CVE.ORG link : CVE-2026-16254

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2026-16254", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16254", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-20T13:03:09.955129Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-main-rhel8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-main-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-operator-bundle", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-rhel8-operator", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-rhel9-operator", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-roxctl-rhel8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-roxctl-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-scanner-v4-rhel8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:advanced_cluster_security:4"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Security 4", "packageName": "advanced-cluster-security/rhacs-scanner-v4-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:quay:3"], "vendor": "Red Hat", "product": "Red Hat Quay 3", "packageName": "quay/clair-rhel8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:quay:3"], "vendor": "Red Hat", "product": "Red Hat Quay 3", "packageName": "quay/clair-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-07-20T12:17:56.373", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-16254", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502701", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in claircore's apk package scanner. Malformed package-database data in a container layer can cause an out-of-bounds access that panics the scanner. If that panic is not recovered, the Clair indexer process can crash, leading to a denial of service."}], "lastModified": "2026-07-21T18:31:51.680", "sourceIdentifier": "secalert@redhat.com"}