Description
Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Service Mesh 1 | servicemesh-proxy | 1.0.7-1.el8 | RHSA-2020:0477 |
Advisories 1
- RHSA-2020:0477 Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.0.7 servicemesh-proxy security update Red Hat Security Advisories (RHSA) · Mar 18, 2026