{ "document": { "aggregate_severity": { "text": "Critical" }, "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-2026-33228-els_os-almalinux9_2esu.json" } ], "tracking": { "current_release_date": "2026-05-12T15:35:40Z", "generator": { "date": "2026-05-12T15:35:40Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-33228-ELS_OS-ALMALINUX9.2ESU", "initial_release_date": "2026-03-20T23:16:00Z", "revision_history": [ { "date": "2026-03-20T23:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-02T09:01:06Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-05-06T14:33:53Z", "number": "3", "summary": "Update document" }, { "date": "2026-05-12T15:35:40Z", "number": "4", "summary": "Update document" } ], "status": "final", "version": "4" }, "title": "Security update on CVE-2026-33228" }, "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": "libicu-0:67.1-9.el9.tuxcare.els1.i686", "product": { "name": "libicu-0:67.1-9.el9.tuxcare.els1.i686", "product_id": "libicu-0:67.1-9.el9.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libicu@67.1-9.el9.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "product": { "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "product_id": "libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libicu-devel@67.1-9.el9.tuxcare.els1?arch=i686" } } } ], "category": "architecture", "name": "i686" }, { "branches": [ { "category": "product_version", "name": "libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "product": { "name": "libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "product_id": "libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libicu@67.1-9.el9.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "product": { "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "product_id": "libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libicu-devel@67.1-9.el9.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "icu-0:67.1-9.el9.tuxcare.els1.x86_64", "product": { "name": "icu-0:67.1-9.el9.tuxcare.els1.x86_64", "product_id": "icu-0:67.1-9.el9.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/icu@67.1-9.el9.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch", "product": { "name": "libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch", "product_id": "libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libicu-doc@67.1-9.el9.tuxcare.els1?arch=noarch" } } } ], "category": "architecture", "name": "noarch" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libicu-0:67.1-9.el9.tuxcare.els1.i686 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.i686" }, "product_reference": "libicu-0:67.1-9.el9.tuxcare.els1.i686", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "libicu-0:67.1-9.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.x86_64" }, "product_reference": "libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch" }, "product_reference": "libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.i686 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.i686" }, "product_reference": "libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64" }, "product_reference": "libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "icu-0:67.1-9.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:icu-0:67.1-9.el9.tuxcare.els1.x86_64" }, "product_reference": "icu-0:67.1-9.el9.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-33228", "cwe": { "id": "CWE-1321", "name": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')" }, "notes": [ { "category": "description", "text": "flatted is a circular JSON parser. Prior to version 3.4.2, the parse() function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the internal input buffer is a JavaScript Array, accessing it with the key \"__proto__\" returns Array.prototype via the inherited getter. This object is then treated as a legitimate parsed value and assigned as a property of the output object, effectively leaking a live reference to Array.prototype to the consumer. Any code that subsequently writes to that property will pollute the global prototype. This issue has been patched in version 3.4.2.", "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:icu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-33228" }, { "category": "external", "summary": "https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802", "url": "https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802" }, { "category": "external", "summary": "https://github.com/WebReflection/flatted/releases/tag/v3.4.2", "url": "https://github.com/WebReflection/flatted/releases/tag/v3.4.2" }, { "category": "external", "summary": "https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh", "url": "https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh" } ], "release_date": "2026-03-20T23:16:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AlmaLinux-9.2:icu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch" ] } ], "threats": [ { "category": "impact", "details": "Critical" }, { "category": "impact", "date": "2026-05-06T14:01:13.248704Z", "details": "critical", "product_ids": [ "AlmaLinux-9.2:icu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.i686", "AlmaLinux-9.2:libicu-devel-0:67.1-9.el9.tuxcare.els1.x86_64", "AlmaLinux-9.2:libicu-doc-0:67.1-9.el9.tuxcare.els1.noarch" ] } ] } ] }