CVE-2021-43979

Katalog CVE

CVSS 5.3 · Medium EPSS 1,1%

Kerentanan Always-Incorrect Control Flow Implementation pada openpolicyagent gatekeeper. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Styra Open Policy Agent (OPA) Gatekeeper through 3.7.0 mishandles concurrency, sometimes resulting in incorrect access control. The data replication mechanism allows policies to access the Kubernetes cluster state. During data replication, OPA/Gatekeeper does not wait for the replication to finish before processing a request, which might cause inconsistencies between the replicated resources in OPA/Gatekeeper and the resources actually present in the cluster. Inconsistency can later be reflected in a policy bypass. NOTE: the vendor disagrees that this is a vulnerability, because Kubernetes states are only eventually consistent

Rincian

Terbit di NVD

17 November 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-670: Always-Incorrect Control Flow Implementation

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/open-policy-agent/gatekeeper/releases patch · advisory pihak ketiga
• https://github.com/hkerma/opa-gatekeeper-concurrency-issue advisory pihak ketiga