CVE-2026-76827
CVE-2026-76827: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.8
Medium [CVE-2026-76827] UPDATE/DELETE operations not scoped to caller's cluster (cross-tenant data tampering)
CVE-2026-76827Source published Source updated
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. An attacker could exploit this by crafting specific user identifiers (UIDs) with a different cluster's prefix. This is a Moderate flaw in Red Hat Advanced Cluster Management for Kubernetes. Exploitation requires already holding legitimate, authenticated managed-cluster credentials, which is why this does not reach Important severity. Red Hat severity: Moderate — CVSS 6.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N). Weakness: CWE-693. Red Hat fixing advisory: RHSA-2026:60387, RHSA-2026:60390, RHSA-2026:60388, RHSA-2026:60389, RHSA-2026:60391, RHSA-2026:60386. Affected products named by the advisory: Red Hat Advanced…
- Affected products in this advisory
- 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
2 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rhacm2/acm-search-indexer-rhel9:1787688957
- rhacm2/acm-search-indexer-rhel9:1787262474
- rhacm2/acm-search-indexer-rhel9:1787250074
- rhacm2/acm-search-indexer-rhel9:1787249293
8 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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