{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-50264", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-06-04T14:55:24.012Z", "datePublished": "2026-06-05T10:36:37.352Z", "dateUpdated": "2026-07-27T12:05:43.283Z" }, "containers": { "cna": { "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds heap write in dri2 drigetbuffers/drigetbufferswithformat", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "xorg-x11-server-Xwayland", "defaultStatus": "affected", "versions": [ { "version": "0:24.1.9-4.el10_2.2", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/o:redhat:enterprise_linux:10.2" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "xorg-x11-server-Xwayland", "defaultStatus": "affected", "versions": [ { "version": "0:24.1.5-6.el10_0.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/o:redhat:enterprise_linux_eus:10.0" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended 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"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "xorg-x11-server", "defaultStatus": "unknown", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:26562", "name": "RHSA-2026:26562", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:26566", "name": "RHSA-2026:26566", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:26590", "name": "RHSA-2026:26590", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:26610", "name": "RHSA-2026:26610", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:26709", "name": "RHSA-2026:26709", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:28923", "name": "RHSA-2026:28923", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:29844", "name": "RHSA-2026:29844", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36083", "name": "RHSA-2026:36083", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36085", "name": "RHSA-2026:36085", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36086", "name": "RHSA-2026:36086", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36087", "name": "RHSA-2026:36087", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36632", "name": "RHSA-2026:36632", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": 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AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)" }, { "lang": "en", "value": "RHSA-2026:46385: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)" }, { "lang": "en", "value": "RHSA-2026:36768: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)" }, { "lang": "en", "value": "RHSA-2026:38502: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)" }, { "lang": "en", "value": "RHSA-2026:46377: Red Hat Enterprise Linux AppStream E4S (v.9.2)" }, { "lang": "en", "value": "RHSA-2026:36086: Red Hat Enterprise Linux AppStream E4S (v.9.2)" }, { "lang": "en", "value": "RHSA-2026:36633: Red Hat Enterprise Linux AppStream E4S (v.9.2)" }, { "lang": "en", "value": "RHSA-2026:46456: Red Hat Enterprise Linux AppStream E4S (v.9.4)" }, { "lang": "en", "value": "RHSA-2026:36087: Red Hat Enterprise Linux AppStream E4S (v.9.4)" }, { "lang": "en", "value": "RHSA-2026:36632: Red Hat Enterprise Linux AppStream E4S (v.9.4)" }, { "lang": "en", "value": "RHSA-2026:46392: Red Hat Enterprise Linux AppStream EUS (v.9.6)" }, { "lang": "en", "value": "RHSA-2026:36085: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)" }, { "lang": "en", "value": "RHSA-2026:36634: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)" }, { "lang": "en", "value": "RHSA-2026:29844: Red Hat Enterprise Linux AppStream (v. 9)" }, { "lang": "en", "value": "RHSA-2026:26610: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)" }, { "lang": "en", "value": "RHSA-2026:26590: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)" } ], "timeline": [ { "lang": "en", "time": "2026-05-15T03:14:46.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-06-02T00:00:00.000Z", "value": "Made public." } ], "title": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-27T12:05:43.283Z" } } ] } }