{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-0881", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-01-13T13:30:54.908Z", "datePublished": "2026-01-13T13:30:55.122Z", "dateUpdated": "2026-06-30T12:06:28.062Z" }, "containers": { "cna": { "affected": [ { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "status": "unaffected", "version": "147", "lessThanOrEqual": "*", "versionType": "rpm" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "status": "unaffected", "version": "147", "lessThanOrEqual": "*", "versionType": "rpm" } ] } ], "descriptions": [ { "lang": "en", "value": "Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147." } ] } ], "title": "Sandbox escape in the Messaging System component", "references": [ { "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2005845" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2026-01/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2026-04/" } ], "credits": [ { "lang": "en", "value": "Andrew McCreight" } ], "providerMetadata": { "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-04-13T13:51:46.729Z" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-693", "lang": "en", "description": "CWE-693 Protection Mechanism Failure" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-284", "lang": "en", "description": "CWE-284 Improper Access Control" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "CHANGED", "version": "3.1", "baseScore": 10, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-13T18:29:56.520371Z", "id": "CVE-2026-0881", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-13T18:32:04.165Z" } }, { "affected": [ { "cpes": [ "cpe:/o:redhat:enterprise_linux:10" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" } ], "datePublic": "2026-01-13T13:30:55.122Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:\nSandbox escape in the Messaging System component" } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-0881" }, { "name": "RHBZ#2428970", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428970" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0881.json" } ], "timeline": [ { "lang": "en", "time": "2026-01-13T14:01:57.493Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-01-13T13:30:55.122Z", "value": "Made public." } ], "title": "firefox: Sandbox escape in the Messaging System component", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-06-30T12:06:28.062Z" } } ] } }