CVE-2021-31920: Istio Authorization Bypass Vulnerability

CVE-2021-31920 · Severity: low · CVSS 3.1 · Published 2022-05-24

Istio Authorization Bypass Vulnerability

Technologies: istio.io/istio (Go). Vendors: Go.

Quick answers

Is CVE-2021-31920 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-31920 being exploited in the wild.
How severe is CVE-2021-31920?
Low severity, with a CVSS score of 3.1, published 24 May 2022.
Which products and versions are affected?
istio.io/istio (Go) SEMVER:introduced=0,fixed=1.8.6.
Is there a fix for CVE-2021-31920?
Yes. istio.io/istio (Go): upgrade to 1.8.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-31920?
Check whether you run istio.io/istio (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • istio.io/istio (Go): upgrade to 1.8.6 or later
    go get istio.io/istio@v1.8.6

Affected products

  • istio.io/istio (Go) SEMVER:introduced=0,fixed=1.8.6

Identifiers

  • CVE-2021-31920
  • GHSA-6q5m-22mq-q2xv

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