VDB

CVE-2026-76827

CVE-2026-76827 PUBLISHED CVSS 6.8 MEDIUM

Reported by redhat · Published August 19, 2026

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.

Risk Scores

CVSS 3.1
6.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

Affected Products

VendorProductVersions
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.111787688957
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.131787262474
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.141787250074
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.151787249293
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.161787248491
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.171787247085
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.141787250074, 1787250074
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.171787247085, 1787247085, 1787247085
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.131787262474, 1787262474, 1787262474
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.151787249293, 1787249293, 1787249293
Red HatRed Hat Advanced Cluster Management for Kubernetes 2
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.161787248491, 1787248491
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.111787688957, 1787688957

Timeline

  • Aug 19, 2026 CVE Published
  • Aug 20, 2026 Coalition ESS Score
  • Aug 24, 2026 EPSS Score
  • Aug 27, 2026 EPSS Score
  • Sep 2, 2026 EPSS Score
  • Sep 5, 2026 CVE Updated
  • Sep 6, 2026 EPSS Score
  • Sep 6, 2026 Distribution Patch
  • Sep 6, 2026 Distribution Patch
  • Sep 6, 2026 Distribution Patch
  • Sep 6, 2026 Distribution Patch
  • Sep 6, 2026 Distribution Patch

References

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