{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91150", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-14T20:36:53.441Z", "datePublished": "2026-11-11T18:38:12.565Z", "dateUpdated": "2026-11-11T18:38:12.565Z"}, "containers": {"cna": {"title": "Cockpit: cockpit: denial of service via unbounded fragmented websocket messages", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size limit, leading to unbounded memory exhaustion and a denial of service in the `cockpit-ws` service."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:enterprise_linux:10"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:rhel_els:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:enterprise_linux:9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Dev Spaces", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "devspaces/udi-base-rhel10", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Dev Spaces", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "devspaces/udi-base-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Dev Spaces", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "devspaces/udi-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-91150", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478436", "name": "RHBZ#2478436", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://github.com/cockpit-project/cockpit/commit/4bc66ac3e5b4923528f1ac89517a009b7bc90f93"}, {"url": "https://github.com/cockpit-project/cockpit/releases/tag/372"}], "datePublic": "2026-11-10T23:59:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-770: Allocation of Resources Without Limits or Throttling", "timeline": [{"lang": "en", "time": "2026-05-18T03:32:25.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-11-10T23:59:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "This issue was discovered by AISLE Research and Found by AISLE in partnership with Red Hat."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-11T18:38:12.565Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{}

{}

{}