{ "document": { "aggregate_severity": { "text": "Medium" }, "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/centos6els/vex/2026/cve-2026-31802-els_os-centos6els.json" } ], "tracking": { "current_release_date": "2026-04-08T09:51:40Z", "generator": { "date": "2026-04-08T09:51:40Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-31802-ELS_OS-CENTOS6ELS", "initial_release_date": "2026-03-10T07:44:00Z", "revision_history": [ { "date": "2026-03-10T07:44:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-02T09:48:48Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-04-08T09:51:40Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2026-31802" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 6", "product": { "name": "Community Enterprise Operating System 6", "product_id": "CentOS-6", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" }, { "branches": [ { "category": "product_version", "name": "tar-2:1.23-15.el6_8.x86_64", "product": { "name": "tar-2:1.23-15.el6_8.x86_64", "product_id": "tar-2:1.23-15.el6_8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/tar@1.23-15.el6_8?arch=x86_64&epoch=2" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "product": { "name": "tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "product_id": "tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/tar@1.23-15.el6_8.tuxcare.els1?arch=x86_64&epoch=2" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "tar-2:1.23-15.el6_8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:tar-2:1.23-15.el6_8.tuxcare.els1.x86_64" }, "product_reference": "tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "tar-2:1.23-15.el6_8.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:tar-2:1.23-15.el6_8.x86_64" }, "product_reference": "tar-2:1.23-15.el6_8.x86_64", "relates_to_product_reference": "CentOS-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-31802", "cwe": { "id": "CWE-22", "name": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')" }, "notes": [ { "category": "description", "text": "node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.", "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" } ], "product_status": { "known_affected": [ "CentOS-6:tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "CentOS-6:tar-2:1.23-15.el6_8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-31802" }, { "category": "external", "summary": "https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad", "url": "https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad" }, { "category": "external", "summary": "https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256", "url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256" } ], "release_date": "2026-03-10T07:44:00Z", "remediations": [ { "category": "no_fix_planned", "details": "This is a local-only issue that requires a Node.js component to explicitly extract an attacker‑supplied tar archive using node‑tar’s tar.x(), so it has no remote trigger without that specific workflow. It provides only an integrity primitive—overwriting files that the extracting process already has permission to write—without affecting confidentiality or availability and without elevating privileges. Because it only applies to applications that programmatically unpack untrusted tarballs, exposure in centrally managed Linux VM/server deployments is minimal and the CVE can be deprioritized.", "product_ids": [ "CentOS-6:tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "CentOS-6:tar-2:1.23-15.el6_8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1" }, "products": [ "CentOS-6:tar-2:1.23-15.el6_8.tuxcare.els1.x86_64", "CentOS-6:tar-2:1.23-15.el6_8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }