CVEvulnerability

CVE-2021-31921

9.8 CRITICAL Published 2021-06-02 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-862

Description

Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.

Affected configurations

• istio istio (< 1.8.6) • istio istio (>= 1.9.0 < 1.9.5)

Related

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References