{"id":"CVE-2022-31045","aliases":["EUVD-2022-6197","GHSA-xwx5-5c9g-x68x","RHSA-2022:5004"],"status":"published","title":"Ill-formed headers may lead to unexpected behavior in Istio","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.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01192,"percentile":0.68431,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2022-06-09T20:55:10Z","modified":"2026-10-28T02:30:52Z","fixes":[{"ecosystem":"Go","package":"istio.io/istio","fixed_in":["1.12.18","1.13.5","1.14.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.18"}]}]},{"source":"ghsa","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.13.0"},{"fixed":"1.13.5"}]}]},{"source":"ghsa","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.14.0"},{"fixed":"1.14.1"}]}]},{"source":"osv","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.12.18"}]}]},{"source":"osv","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"SEMVER","events":[{"introduced":"1.13.0"},{"fixed":"1.13.5"}]}]},{"source":"osv","ecosystem":"Go","package":"istio.io/istio","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.1"}]}]},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-cni","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-operator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-2.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-pilot-agent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-pilot-discovery","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-prometheus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.23.0-7.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-proxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-proxy-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-proxy-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-proxy-wasm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.1::el8","package":"servicemesh-ratelimit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.3-1.el8"}]}],"bundled":8}],"products":[{"vendor":"istio","product":"istio"}],"references":[{"url":"https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68x","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web","article"]},{"url":"https://istio.io/latest/news/security/istio-security-2022-05","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-31045","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xwx5-5c9g-x68x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31045.json","tags":["advisory"]},{"url":"https://github.com/istio/istio","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2022:5004","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#critical","tags":["article"]},{"url":"https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2053429","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2053532","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2053541","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2088737","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2088738","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2088739","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2088740","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2088819","tags":["report"]},{"url":"https://issues.redhat.com/browse/OSSM-1107","tags":["article"]},{"url":"https://issues.redhat.com/browse/OSSM-1614","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_5004.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-23772","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-23772","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23772","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/SUsQn0aSgPQ","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-23773","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-23773","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23773","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-23806","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-23806","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23806","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-29224","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-29224","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29224","tags":["advisory"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-m4j9-86g3-8f49","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-29225","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-29225","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29225","tags":["advisory"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hh","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-29226","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-29226","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29226","tags":["advisory"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-h45c-2f94-prxh","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-29228","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-29228","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29228","tags":["advisory"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-rww6-8h7g-8jf6","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-31045","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-31045","tags":["advisory"]},{"url":"https://istio.io/latest/news/security/istio-security-2022-005/#cve-2022-31045","tags":["article"]}],"sources":{"cve":[{"id":"CVE-2022-31045","title":"Ill-formed headers may lead to unexpected behavior in Istio","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.","status":"published","published":"2022-06-09T20:55:10Z","modified":"2025-04-23T18:17:15.176Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:34:35.279735Z"}],"euvd":[{"id":"EUVD-2022-6197","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.","status":"published","published":"2022-06-09T20:55:10Z","modified":"2025-04-23T18:17:15Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:08.95736Z"}],"ghsa":[{"id":"GHSA-xwx5-5c9g-x68x","title":"Ill-formed headers may lead to unexpected behavior in Istio","description":"### Impact\nIll-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing.\n\nYou are at most risk if you have an Istio ingress Gateway exposed to external traffic.\n\n### Patches\n1.12.8, 1.13.5, 1.14.1\n\n### Workarounds\nNo.\n\n### References\nMore details can be found in the [Istio Security Bulletin](https://istio.io/latest/news/security/istio-security-2022-05)\n\n### For more information\nIf you have any questions or comments about this advisory, please email us at [istio-security-vulnerability-reports@googlegroups.com](mailto:istio-security-vulnerability-reports@googlegroups.com)\n","status":"published","published":"2022-06-10T19:53:55Z","modified":"2023-01-27T05:03:30Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:36:20.144464Z"}],"nvd":[{"id":"CVE-2022-31045","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.","status":"published","published":"2022-06-09T21:15:07.847Z","modified":"2026-06-17T04:44:40.68Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:07:21.62951Z"}],"osv":[{"id":"CVE-2022-31045","title":"Ill-formed headers may lead to unexpected behavior in Istio","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.","status":"published","published":"2022-06-09T20:55:10Z","modified":"2026-10-28T02:30:52.755398476Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:44:25.516981Z"},{"id":"GHSA-xwx5-5c9g-x68x","title":"Ill-formed headers may lead to unexpected behavior in Istio","description":"### Impact\nIll-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing.\n\nYou are at most risk if you have an Istio ingress Gateway exposed to external traffic.\n\n### Patches\n1.12.8, 1.13.5, 1.14.1\n\n### Workarounds\nNo.\n\n### References\nMore details can be found in the [Istio Security Bulletin](https://istio.io/latest/news/security/istio-security-2022-05)\n\n### For more information\nIf you have any questions or comments about this advisory, please email us at [istio-security-vulnerability-reports@googlegroups.com](mailto:istio-security-vulnerability-reports@googlegroups.com)\n","status":"published","published":"2022-06-10T19:53:55Z","modified":"2026-09-10T03:49:44.172835191Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:47:00.604718Z"},{"id":"RHSA-2022:5004","title":"Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.1.3 security update","status":"published","published":"2024-09-30T14:22:28Z","modified":"2026-10-16T10:01:31Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"}]}}