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CVE-2026-31837 Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.

🗓️ 10 Mar 2026 21:57:44Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

CVE-2026-31837 fixes private key exposure when JWKS fetch fails in Istio before versions 1.29.1, 1.28.5, and 1.27.8.

Related
Affected
Refs
[
  {
    "vendor": "istio",
    "product": "istio",
    "versions": [
      {
        "version": ">= 1.29.0-alpha.0, < 1.29.1",
        "status": "affected"
      },
      {
        "version": ">= 1.28.0-alpha.0, < 1.28.5",
        "status": "affected"
      },
      {
        "version": "< 1.27.8",
        "status": "affected"
      }
    ]
  }
]

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10 Mar 2026 21:57Current
CVSS 48.7
EPSS0.00279
26