{ "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/centos-stream8els/vex/2026/cve-2026-4800-els_os-centos-stream8els.json" } ], "tracking": { "current_release_date": "2026-09-24T12:50:31Z", "generator": { "date": "2026-09-24T12:50:31Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-4800-ELS_OS-CENTOS-STREAM8ELS", "initial_release_date": "2026-03-31T20:16:00Z", "revision_history": [ { "date": "2026-03-31T20:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-24T12:50:31Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2026-4800" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 8", "product": { "name": "Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:8:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs-snmp@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-4800", "cwe": { "id": "CWE-94", "name": "Improper Control of Generation of Code ('Code Injection')" }, "notes": [ { "category": "description", "text": "Impact:\n\nThe fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink.\n\nWhen an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time.\n\nAdditionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().\n\nPatches:\n\nUsers should upgrade to version 4.18.0.\n\nWorkarounds:\n\nDo not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.", "title": "Vulnerability description" }, { "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": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-4800" }, { "category": "external", "summary": "https://cna.openjsf.org/security-advisories.html", "url": "https://cna.openjsf.org/security-advisories.html" }, { "category": "external", "summary": "https://github.com/advisories/GHSA-35jh-r3h4-6jhm", "url": "https://github.com/advisories/GHSA-35jh-r3h4-6jhm" }, { "category": "external", "summary": "https://github.com/lodash/lodash/commit/3469357cff396a26c363f8c1b5a91dde28ba4b1c", "url": "https://github.com/lodash/lodash/commit/3469357cff396a26c363f8c1b5a91dde28ba4b1c" }, { "category": "external", "summary": 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