{"schemaVersion":3,"id":"RHSA-2026:57914","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: Red Hat build of MicroShift 4.18.54 security update","dates":{"published":"2026-08-27T10:15:25.000Z","modified":"2026-10-20T10:11:40.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"redhat","product":"microshift","name":"microshift","label":"microshift","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-gateway-api","name":"microshift-gateway-api","label":"microshift-gateway-api","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-gateway-api","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-gateway-api-release-info","name":"microshift-gateway-api-release-info","label":"microshift-gateway-api-release-info","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-gateway-api-release-info","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-greenboot","name":"microshift-greenboot","label":"microshift-greenboot","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-greenboot","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-low-latency","name":"microshift-low-latency","label":"microshift-low-latency","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-low-latency","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-multus","name":"microshift-multus","label":"microshift-multus","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-multus","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-multus-release-info","name":"microshift-multus-release-info","label":"microshift-multus-release-info","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-multus-release-info","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-networking","name":"microshift-networking","label":"microshift-networking","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-networking","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-olm","name":"microshift-olm","label":"microshift-olm","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-olm","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-olm-release-info","name":"microshift-olm-release-info","label":"microshift-olm-release-info","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-olm-release-info","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-release-info","name":"microshift-release-info","label":"microshift-release-info","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-release-info","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null},{"vendor":"redhat","product":"microshift-selinux","name":"microshift-selinux","label":"microshift-selinux","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/microshift-selinux","purlType":"rpm","versions":[{"text":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.54-202608211117.p0.g8eb6c29.assembly.4.18.54.el9","eol":null,"hubHref":null}],"affectedCount":12,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:57914","label":"access.redhat.com/errata/RHSA-2026:57914","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467809","label":"bugzilla.redhat.com/show_bug.cgi?id=2467809","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467820","label":"bugzilla.redhat.com/show_bug.cgi?id=2467820","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_57914.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_57914.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-39820","label":"access.redhat.com/security/cve/CVE-2026-39820","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-39820","label":"www.cve.org/CVERecord?id=CVE-2026-39820","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39820","label":"nvd.nist.gov/vuln/detail/CVE-2026-39820","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://go.dev/cl/759940","label":"go.dev/cl/759940","hostname":"go.dev","tags":["ARTICLE"]},{"url":"https://go.dev/issue/78566","label":"go.dev/issue/78566","hostname":"go.dev","tags":["ARTICLE"]},{"url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M","label":"groups.google.com/g/golang-announce/c/qcCIEXso47M","hostname":"groups.google.com","tags":["ARTICLE"]},{"url":"https://pkg.go.dev/vuln/GO-2026-4986","label":"pkg.go.dev/vuln/GO-2026-4986","hostname":"pkg.go.dev","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-42499","label":"access.redhat.com/security/cve/CVE-2026-42499","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42499","label":"www.cve.org/CVERecord?id=CVE-2026-42499","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42499","label":"nvd.nist.gov/vuln/detail/CVE-2026-42499","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://go.dev/cl/771520","label":"go.dev/cl/771520","hostname":"go.dev","tags":["ARTICLE"]},{"url":"https://go.dev/issue/78987","label":"go.dev/issue/78987","hostname":"go.dev","tags":["ARTICLE"]},{"url":"https://pkg.go.dev/vuln/GO-2026-4977","label":"pkg.go.dev/vuln/GO-2026-4977","hostname":"pkg.go.dev","tags":["Advisory"]}],"lineage":{"upstream":["CVE-2026-39820","CVE-2026-42499"],"downstream":[],"duplicates":[],"related":["CVE-2026-39820","CVE-2026-42499"]},"timeline":[{"kind":"published","date":"2026-08-27T10:15:25.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-20T10:11:40.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T14:37:40.496Z","stale":false,"partial":false}}