Medium [CVE-2026-88057] @angular/core: @angular/compiler: Angular: Arbitrary code execution via sanitization bypass in host bindings
This medium-severity Red Hat Linux advisory covers CVE-2026-88057 affecting Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat build of Apicurio Registry 3, Red Hat Ceph Storage 4.
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Summary
A flaw was found in Angular's @angular/core and @angular/compiler components. This vulnerability allows a remote attacker to bypass security sanitization mechanisms.
By injecting malicious data into specific HTML attributes, an attacker can cause the application to execute arbitrary JavaScript code in the user's browser, leading to a Cross-Site Scripting (XSS) attack. This occurs because the system incorrectly determines the security context for certain directive host bindings.
Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N). Weakness: CWE-79.
Affected Red Hat products: Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat build of Apicurio Registry 3; Red Hat Ceph Storage 4; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Fuse 7. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: ceph; Red Hat package: firefox; Red Hat package: gjs; Red Hat package: intel-cmt-cat; and 4 more.
Affected products named by the advisory: Red Hat package: thunderbird; Red Hat package: mozjs60; Red Hat package: dotnet6.0; Red Hat package: dotnet7.0.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 20.3.28
- 21.2.20
- 22.1.0
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 20.3.28, 21.2.20, 22.1.0. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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