CVE-2026-39350 (GCVE-0-2026-39350)
Vulnerability from cvelistv5
Published
2026-04-15 22:42
Modified
2026-04-16 12:04
CWE
  • CWE-185 - Incorrect Regular Expression
  • CWE-863 - Incorrect Authorization
Summary
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.
Impacted products
Vendor Product Version
istio istio Version: >= 1.25.0, < < 1.27.9
Version: >= 1.28.0, < 1.28.6
Version: >= 1.29.0, < 1.29.2
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Show details on NVD website


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