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GHSA-6q5m-22mq-q2xv

Withdrawn on 2023-08-07. GitHub withdrew this advisory; it no longer applies.

Istio Authorization Bypass Vulnerability

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-31920

Packages

EcosystemPackageAffectedFixed in
Go istio.io/istio < 1.8.6 1.8.6
Go istio.io/istio >= 1.9.0, < 1.9.5 1.9.5

Details

As written in the advisory (Markdown source, shown as plain text).

Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.

References

External links from the advisory. They lead to third-party sites.