Vulnerability details
CVE-2026-77176
Red Hat OpenShift Container Platform 4
Kata-containers: insufficient validation of createcontainer mount and storage rules in genpolicy
CVSS 3.1
8.1High
Official description
A flaw was found in Kata Containers. In configurations utilizing genpolicy for Confidential Containers guest protection, a malicious host operator can exploit insufficient validation of CreateContainer mount and storage rules. This allows them to mount arbitrary container-rootfs paths over sensitive host locations or provision arbitrary content, potentially exposing confidential information or enabling the acceptance of attacker-controlled input.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Container Platform 4 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat OpenShift Container Platform 4 | All | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://access.redhat.com/security/cve/CVE-2026-77176 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2517502 issue-trackingx_refsource_REDHAT
- https://github.com/kata-containers/kata-containers/security/advisories/GHSA-fmg6-v47x-52wr
- http://www.openwall.com/lists/oss-security/2026/08/20/19
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Details
- Published
- 2026-08-20
- Last updated
- 2026-10-31
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
0.47%
Probability of exploitation in 30 days
41.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-73External Control of File Name or Path