CVE-2022-39388

Name: CVE-2022-39388
Creator: NVD / NIST
Published: 2022-11-10T20:15:10.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.5/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2022-39388 is a low-severity vulnerability rated 3.5/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.5/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.46%

36.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Istio	Istio	>= 1.15.0, <= 1.15.2

References

https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32Patch, Third Party Advisory
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9Patch, Third Party Advisory
https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4Third Party Advisory
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/Release Notes, Vendor Advisory
https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32Patch, Third Party Advisory
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9Patch, Third Party Advisory
https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4Third Party Advisory
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/Release Notes, Vendor Advisory

Timeline

Published: Nov 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39388?

How severe is CVE-2022-39388?

CVE-2022-39388 has a CVSS score of 3.5/10 (LOW severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST