Description
A flaw was found in search-indexer. This vulnerability allows a registered and authenticated managed cluster to tamper with or delete another cluster's indexed search data. This is possible because the delta-sync write paths in search-indexer do not properly restrict UPDATE/DELETE operations to data owned by the calling cluster. An attacker could exploit this by crafting specific user identifiers (UIDs) with a different cluster's prefix.
Metrics
CVSS 3.1 6.8/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | — |
References
- https://access.redhat.com/errata/RHSA-2026:60386
- https://access.redhat.com/errata/RHSA-2026:60387
- https://access.redhat.com/errata/RHSA-2026:60388
- https://access.redhat.com/errata/RHSA-2026:60389
- https://access.redhat.com/errata/RHSA-2026:60390
- https://access.redhat.com/errata/RHSA-2026:60391
- https://access.redhat.com/security/cve/CVE-2026-76827
- https://bugzilla.redhat.com/show_bug.cgi?id=2519896
Timeline
- Published
- Aug 19, 2026
- Last modified
- Oct 26, 2026
- NVD status
- Awaiting Analysis