CVE-2026-76827

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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

Configurations

No configuration.

History

26 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una falla en search-indexer. Esta vulnerabilidad permite a un clúster gestionado registrado y autenticado manipular o eliminar los datos de búsqueda indexados de otro clúster. Esto es posible porque las rutas de escritura de sincronización delta en search-indexer no restringen adecuadamente las operaciones de ACTUALIZACIÓN/ELIMINACIÓN a los datos propiedad del clúster que realiza la llamada. Un atacante podría explotar esto al crear identificadores de usuario específicos (UIDs) con el prefijo de un clúster diferente.

Information

Published : 2026-08-19 21:17

Updated : 2026-10-26 10:10

NVD link : CVE-2026-76827

Mitre link : CVE-2026-76827

CVE.ORG link : CVE-2026-76827

JSON object : View

Products Affected

No product.

CWE

CWE-693

Protection Mechanism Failure

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Un atacante podr\u00eda explotar esto al crear identificadores de usuario espec\u00edficos (UIDs) con el prefijo de un cl\u00faster diferente."}], "lastModified": "2026-10-26T10:10:00.140", "sourceIdentifier": "secalert@redhat.com"}