CVE-2022-39388 | BDVDB-2026-188459 Detail

istioistio

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact none. Attack vector: adjacent.

Weaknesses#

CWE-863 Incorrect Authorization

References#

Exploit#

No public exploit known

History#

Version 12022-11-10Record published in the CVE List.
Version 22025-04-23Most recent update recorded in the CVE List.

Published

Published: 2022-11-10
Last modified: 2025-04-23

Vendor information

Vendor: istio
Product: istio

All istio vulnerabilities

Score

7.6 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 45.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Incorrect Authorization

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 1.15.0-beta.0, < 1.15.3
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.6 High

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

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).