{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/vex/2026/cve-2026-6786-els_os-almalinux9_2esu.json" } ], "tracking": { "current_release_date": "2026-05-30T22:25:32Z", "generator": { "date": "2026-05-30T22:25:32Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-6786-ELS_OS-ALMALINUX9.2ESU", "initial_release_date": "2026-04-21T12:41:00Z", "revision_history": [ { "date": "2026-04-21T12:41:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-05-27T12:43:28Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-05-30T22:25:32Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2026-6786" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.2", "product": { "name": "AlmaLinux 9.2", "product_id": "AlmaLinux-9.2", "product_identification_helper": { "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "AlmaLinux" } ], "category": "vendor", "name": "AlmaLinux OS Foundation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "product": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "product_id": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/thunderbird@115.4.1-1.el9_2.alma.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64", "product": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64", "product_id": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/thunderbird@115.4.1-1.el9_2.alma.tuxcare.els4?arch=x86_64" } } }, { "category": "product_version", "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "product": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "product_id": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/thunderbird@115.4.1-1.el9_2.alma.tuxcare.els3?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64" }, "product_reference": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64" }, "product_reference": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64" }, "product_reference": "thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-6786", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "notes": [ { "category": "description", "text": "Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-6786" } ], "release_date": "2026-04-21T12:41:00Z", "scores": [ { "cvss_v3": { "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" }, "products": [ "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "date": "2026-05-30T20:44:44.047996Z", "details": "important", "product_ids": [ "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els1.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els3.x86_64", "AlmaLinux-9.2:thunderbird-0:115.4.1-1.el9_2.alma.tuxcare.els4.x86_64" ] } ] } ] }