Is CVE-2026-39350 actively exploited?

No active exploitation of CVE-2026-39350 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39350 be exploited remotely?

Yes. CVE-2026-39350 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39350?

CVE-2026-39350 has a CVSS score of 5.4 (MEDIUM).

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MEDIUM

CVE-2026-39350

CWE-185Published: April 15, 2026· Updated: Apr 17, 2026

5.4

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:6.8th

Official Description

Istio is an open platform to connect, manage, and secure microservices. In versions 1.25.0 through 1.27.8, 1.28.0 through 1.28.5, 1.29.0, and 1.29.1, the serviceAccounts and notServiceAccounts fields in AuthorizationPolicy incorrectly interpret dots (.) as a regular expression matcher. Because . is a valid character in a service account name, an AuthorizationPolicy ALLOW rule targeting a service account such as cert-manager.io also matches cert-manager-io, cert-managerXio, etc. A DENY rule targeting the same name fails to block those variants. Fixes are available in versions 1.29.2, 1.28.6, and 1.27.9.

NVD Source

Technical Analysis

CVE-2026-39350 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.