{"cve":"CVE-2022-39388","nvd":{"published":"2022-11-10T20:15:10.587","modified":"2026-06-17T04:58:15.970","status":"Modified","description":"Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":3.5},"cwes":["CWE-863"],"references":["https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32","https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9","https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4","https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/","https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32"],"products":["istio:istio"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2022-39388","score":0.00493,"percentile":0.42362,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6c6p-h79f-g6p4","url":"https://osv.dev/vulnerability/GHSA-6c6p-h79f-g6p4","summary":"Istio may allow identity impersonation if user has localhost access","modified":"2023-11-08T04:10:20.714703Z","packages":[{"ecosystem":"Go","name":"github.com/istio/istio","purl":"pkg:golang/github.com/istio/istio","ranges":[">=1.15.0-beta.0 <1.15.3"],"fixed":["1.15.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}