---
cve: "CVE-2026-76827"
severity: "MEDIUM"
cvss: 6.8
epss: "23%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-08-19 21:17:39"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T23:42:49+02:00"
---

# CVE-2026-76827

> 6.8 MEDIUM

## Beschreibung

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-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Hoch | good |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Keine | good |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://access.redhat.com/security/cve/CVE-2026-76827>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2519896>
- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-76827) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_