CVE-2022-39388

Istio may allow identity impersonation if user has localhost access

State: Published
Severity: 7.6 High
Published: Nov 10, 2022
Updated: Apr 23, 2025
Reserved: Sep 2, 2022

Description

Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.

Scores

CVSS	Score	Vector	Source
3.1	7.6 High	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
istioistio	>= 1.15.0-beta.0, < 1.15.3Affected

References

https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4
https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/

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