Incorrect Authorization Affecting istio.io/istio/pilot/pkg/features package, versions <1.27.8>=1.28.0-alpha.0 <1.28.5>=1.29.0-alpha.0 <1.29.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-ISTIOIOISTIOPILOTPKGFEATURES-15517103
- published13 Mar 2026
- disclosed11 Mar 2026
- creditUnknown
Introduced: 11 Mar 2026
CVE-2026-31838 Â (opens in a new tab)How to fix?
Upgrade istio.io/istio/pilot/pkg/features to version 1.27.8, 1.28.5, 1.29.1 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization in AuthorizeDebugRequest() function, which handles requests to the HTTP debug endpoints on port 15014. An attacker can gain unauthorized access to protected services by sending requests with multiple header values that bypass intended authorization checks.