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CVE-2026-19519— Claircore: claircore: denial of service via unchecked type assertion in rpm header parser

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Security 4
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Redhat advanced cluster security是美国Redhat公司开源的一个集群安全平台。 Redhat advanced cluster security存在异常处理不当漏洞，该漏洞源于claircore的RPM包扫描器未检查类型断言，容器层中特制的RPM头数据可触发扫描器崩溃，导致拒绝服务。

CVSS 4.3 · Medium EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 11

VendorProduct Version RangeStatus
Red Hat Red Hat Advanced Cluster Security 4 any affected
any affected
any affected
any affected
any affected
any affected
any affected
any affected
… +1 more rows
Red Hat Red Hat Quay 3 any affected
any affected
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I. Basic Information for CVE-2026-19519

Vulnerability Information
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Vulnerability Title
Claircore: claircore: denial of service via unchecked type assertion in rpm header parser
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in claircore's RPM package scanner. Crafted RPM header data in a container layer can cause an unchecked type assertion to panic the scanner. The panic is not recovered, causing the Clair indexer process to crash, leading to a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
Redhat advanced cluster security 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redhat advanced cluster security是美国Redhat公司开源的一个集群安全平台。 Redhat advanced cluster security存在异常处理不当漏洞，该漏洞源于claircore的RPM包扫描器未检查类型断言，容器层中特制的RPM头数据可触发扫描器崩溃，导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Advanced Cluster Security 4 - cpe:/a:redhat:advanced_cluster_security:4
Red Hat Red Hat Quay 3 - cpe:/a:redhat:quay:3
Red Hat Red Hat Quay 3 - cpe:/a:redhat:quay:3

II. Public POCs for CVE-2026-19519

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III. Intelligence Information for CVE-2026-19519

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Vendor Advisories for CVE-2026-19519 (2)

Same Patch Batch · Red Hat · 2026-08-11 · 29 CVEs total

CVE-2026-10579 9.8 CRITICAL Picketlink-federation: auth bypass in picketlink saml unsolicited-response
CVE-2026-19546 8.8 HIGH Dbi: incomplete fix for cve-2026-14380 dbi: arbitrary code execution via caller-influenced
CVE-2026-15555 8.8 HIGH Jboss-marshalling-river: wildfly-clustering-infinispan-marshalling: jboss deserialization
CVE-2026-19550 8.2 HIGH Freeipa: ipa: freeipa: trust-fetch-domains uses trust-read aci to gate a privileged ad tru
CVE-2026-15556 8.1 HIGH Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions
CVE-2026-15560 8.1 HIGH Openjdk-orb: unauthed class loading via iiop in eap
CVE-2026-72693 7.8 HIGH Kbd: local privilege escalation in openvt via incorrect process owner verification allowin
CVE-2026-15567 7.5 HIGH Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth denial of service on the iiop lis
CVE-2026-71467 7.5 HIGH Acm-search-v2-api-rhel9: search-v2-api: authentication bypass on /federated via upgrade: w
CVE-2026-71217 7.5 HIGH Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote de
CVE-2026-15565 7.5 HIGH Undertow: undertow-websockets: undertow: pre-auth dos on websocket endpoint with @serveren
CVE-2026-15561 7.5 HIGH Undertow-core: oom via missing limits in chunked trailer in eap's undertow
CVE-2026-15562 7.5 HIGH Jboss-remoting: jboss-remoting: integer overflow in messagereader leads to pre-authenticat
CVE-2026-15563 7.4 HIGH Wildfly-iiop-openjdk: missing authentication on eap's iiop nameservice leads to mitm or do
CVE-2026-15554 7.4 HIGH Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
CVE-2026-50236 7.4 HIGH Openshift/console: authenticated ssrf with full response reflection and path neutralizatio
CVE-2026-50237 7.4 HIGH Openshift/console: namespace tenant ssrf with egress bypass, catalog poisoning, and admin-
CVE-2026-72694 7.1 HIGH Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file p
CVE-2026-24330 6.5 MEDIUM Wildfly-core: wildfly: arbitrary file read via malicious archive deployment
CVE-2026-19391 6.5 MEDIUM Insights-core: insights-core: incomplete credential redaction exposes sssd bind passwords

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Security 4
Same vendor: Red Hat
Same weakness: CWE-617

V. Comments for CVE-2026-19519

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