{"cve":"CVE-2022-31045","nvd":{"published":"2022-06-09T21:15:07.847","modified":"2026-06-17T04:44:40.680","status":"Modified","description":"Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-125"],"references":["https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68x","https://istio.io/latest/news/security/istio-security-2022-05","https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68x","https://istio.io/latest/news/security/istio-security-2022-05"],"products":["istio:istio"],"source":"nvd","synced_at":"2026-10-19T21:32:39.174919249+00:00"},"epss":{"cve":"CVE-2022-31045","score":0.01192,"percentile":0.68005,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xwx5-5c9g-x68x","url":"https://osv.dev/vulnerability/GHSA-xwx5-5c9g-x68x","summary":"Ill-formed headers may lead to unexpected behavior in Istio","modified":"2026-09-10T03:49:44.172835191Z","packages":[{"ecosystem":"Go","name":"istio.io/istio","purl":"pkg:golang/istio.io/istio","ranges":["<1.12.18"],"fixed":["1.12.18"]},{"ecosystem":"Go","name":"istio.io/istio","purl":"pkg:golang/istio.io/istio","ranges":[">=1.13.0 <1.13.5"],"fixed":["1.13.5"]},{"ecosystem":"Go","name":"istio.io/istio","purl":"pkg:golang/istio.io/istio","ranges":[">=1.14.0 <1.14.1"],"fixed":["1.14.1"]}]}],"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."]}