Search-indexer: search-indexer: update/delete operations not scoped to caller's cluster (cross-tenant data tampering) (Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.53 % · percentile 45 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
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.
Weaknesses (CWE)
- CWE-693 — Protection Mechanism Failure
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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N | redhat |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-63091
- GCVE · GCVE-0-2026-76827
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11 | unaffected 1787688957 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.13 | unaffected 1787262474 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.14 | unaffected 1787250074 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.15 | unaffected 1787249293 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1787248491 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1787247085 < * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |