Red HatCVE-2026-76827
Red Hat search-indexer. This vulnerability: protection mechanism failure
Medium6.8CVE-2026-76827 · Published Aug 19, 2026 · updated Sep 5, 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.
Affected versions
The source does not list versions here. See the source advisory for affected products and fixes.
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-693
- www.cve.org/CVERecord?id=CVE-2026-76827
- nvd.nist.gov/vuln/detail/CVE-2026-76827
- access.redhat.com/errata/RHSA-2026:60386
- access.redhat.com/errata/RHSA-2026:60387
- access.redhat.com/errata/RHSA-2026:60388
- access.redhat.com/errata/RHSA-2026:60389
- access.redhat.com/errata/RHSA-2026:60390
- access.redhat.com/errata/RHSA-2026:60391
- access.redhat.com/security/cve/CVE-2026-76827
- bugzilla.redhat.com/show_bug.cgi?id=2519896
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 19 | Red Hat acm-operator-bundle. The build process: untrusted functionality included | High8.0 | No fix yet |
| Aug 19 | Red Hat mce-operator-bundle. The build process fetches: remote code execution | High7.7 | No fix yet |
| Aug 19 | Red Hat Advanced Cluster Management for Kubernetes 2: improper access control | Critical9.9 | No fix yet |
| Aug 19 | Red Hat: authentication bypass | Critical9.3 | No fix yet |
| Aug 19 | Red Hat volsync-addon-controller. This vulnerability: code injection | Medium6.2 | No fix yet |
| Aug 19 | Red Hat search-v2-operator. This vulnerability: privilege escalation | Critical9.1 | No fix yet |