PT-2026-78720 · Red Hat · Red Hat Advanced Cluster Management For Kubernetes 2+6

CVE-2026-76827

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Published

2026-08-19

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Updated

2026-08-27

CVSS v3.1

6.8

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Name of the Vulnerable Software and Affected Versions search-indexer (affected versions not specified)
Description A flaw in the delta-sync write paths allows a registered and authenticated managed cluster to tamper with or delete indexed search data belonging to another cluster. This occurs because the system fails to properly restrict UPDATE and DELETE operations to data owned by the calling cluster. An attacker can exploit this by crafting specific user identifiers (UIDs) using a prefix from a different cluster.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Protection Mechanism Failure

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Weakness Enumeration

Related Identifiers

CVE-2026-76827

Affected Products

Red Hat Advanced Cluster Management For Kubernetes 2
Red Hat Advanced Cluster Management For Kubernetes 2.11
Red Hat Advanced Cluster Management For Kubernetes 2.13
Red Hat Advanced Cluster Management For Kubernetes 2.14
Red Hat Advanced Cluster Management For Kubernetes 2.15
Red Hat Advanced Cluster Management For Kubernetes 2.16
Red Hat Advanced Cluster Management For Kubernetes 2.17